{"title":"Universal Silencers","description":null,"products":[{"product_id":"p-127565","title":"SHORT CONE MEGAPHONE MUFFLER Chrome - GOODS ESPECIALLY","description":"\u003cbr\u003e\u003cp class=\"midashi\"\u003eGOODS ESPECIALLY\u003cbr\u003eOriginal universal silencer \"MEGAPHONE\" series\u003c\/p\u003e\u003cbr\u003eGOODS original megaphone silencer made of steel with a chrome-plated finish.\u003cbr\u003eA wide lineup of end caps, from the classic trumpet type to the racy open end.\u003cbr\u003eDeveloped in-house, this product uses a single expansion chamber + glass wool sound-absorbing design for a structure that resists deterioration over time.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00192_202505_4.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00192_202505_1.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eGOODS DESIGN\u003cbr\u003eGOODS original design\u003c\/p\u003e\u003cbr\u003eA GOODS original design based on the UNIVERSAL mufflers of the past.\u003cbr\u003eWe offer a wide lineup, from the classic trumpet type to the racy open end\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00192_202505_6.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00192_202505_5.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eHighly durable.\u003cbr\u003eGOODS's original sound-absorbing design\u003c\/p\u003e\u003cbr\u003eConventional imported universal mufflers, such as reverse cone mufflers, use a thick straight perforated core with wool, so many lose their silencing ability quickly,\u003cbr\u003ebut this product, developed in-house, uses a single expansion chamber + glass wool sound-absorbing design.\u003cbr\u003eBecause it relies less on the wool, the structure resists deterioration over time.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00193_img_5.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eThe wool can easily be repacked with our \u003ca href=\"https:\/\/www.goods-co.net\/products\/detail.php?product_id=102896\" target=\"_blank\"\u003eGlass Wool (Part No. G4-00093)\u003c\/a\u003e 、\u003ca href=\"https:\/\/www.goods-co.net\/products\/detail.php?product_id=102897\" target=\"_blank\"\u003eStainless Wool (Part No. G4-00092) \u003c\/a\u003eproducts\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eJust the right volume.\u003cbr\u003eSingle expansion chamber + glass wool structure\u003c\/p\u003e\u003cbr\u003eConventional universal mufflers often have a wool-only straight-through design that silences poorly when the throttle is snapped open and tends to be very loud,\u003cbr\u003ewhereas our original \"MEGAPHONE\" uses an expansion chamber + a restricted straight path to deliver strong silencing even when the throttle is snapped open.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eWe also refined the shape and structure of the end cap to reduce wind noise and the harsh tone of conventional products.\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eWithout the optional silencing baffle\u003cbr\u003e\u003cbr\u003e\u003ciframe width=\"600\" height=\"400\" src=\"https:\/\/www.youtube.com\/embed\/6cnJbyMhsNc?si=Vep66DeO5A2HPgnJ\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003cbr\u003e*Measured on an SR400　\u003cbr\u003e1200rpm:87.4db\u003cbr\u003e3500rpm:98.7db\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eAn optional dedicated baffle is also available\u003c\/p\u003e\u003cbr\u003eFor riders who want it even quieter, we also offer an additional silencing baffle dedicated to the MEGAPHONE series.\u003cbr\u003eEasy to install: just remove the end cap and secure it with one bolt.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00187_img_3.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e*Measured on an SR400　\u003cbr\u003e1200rpm:82.4db\u003cbr\u003e3500rpm:92.0db\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eFits the widely compatible φ45mm.\u003cbr\u003eSlide rail mount, handy when making brackets\u003c\/p\u003e\u003cbr\u003eThe inlet diameter fits the widely compatible φ45mm.\u003cbr\u003eThe bracket uses a slide rail, making position adjustment easy when making universal or one-off brackets.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00193_img_4.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eSwaps directly with conventional universal mufflers\u003c\/p\u003e\u003cbr\u003eThe bracket is positioned almost the same as on conventional reverse cone mufflers, so if you already have one installed, you can fit this product with the same bracket and inlet diameter.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00193_img_6.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi3\"\u003ePlease note\u003c\/p\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eOnly the mufflers listed, which we sold in the past, are supported.\u003cbr\u003e\u0026gt; Reverse cone muffler (Part No.: 80-84030)\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eCompatibility with universal mufflers sold by other companies is unknown.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003chr size=\"1\" align=\"left\" width=\"100%\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eSize\u003c\/p\u003eLength: approx. 446mm\u003cbr\u003eMax diameter: approx. φ95mm\u003cbr\u003eInlet diameter: φ45.3mm\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eMaterial\u003c\/p\u003eSteel\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eContents\u003c\/p\u003eSilencer x1\u003cbr\u003eMuffler end x1\u003cbr\u003eMuffler band x1\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eFitment\u003c\/p\u003eUniversal\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eSound level (reference)\u003c\/p\u003e*Measured on an SR400\u003cbr\u003e1200rpm:87.4db\u003cbr\u003e3500rpm:98.7db\u003cbr\u003e\u003cbr\u003e*With optional baffle installed\u003cbr\u003e1200rpm:82.4db\u003cbr\u003e3500rpm:92.0db\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi3\"\u003ePlease note\u003c\/p\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eRacing use only, not for use on public roads\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eAbout installing universal mufflers\u003c\/p\u003e\u003cbr\u003eInstalling a universal muffler requires modification, some ingenuity and the necessary parts to fit your bike.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/howtofitting_universalmuffler2024.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi3\"\u003e1 • About the inlet diameter\u003c\/p\u003ePlease check the inlet diameter listed in the product description.\u003cbr\u003eIf the inlet diameter does not match, a separate joint pipe or spacer is required.\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi3\"\u003e2 • About mounting\u003c\/p\u003eThe muffler body needs to be mounted to the frame.\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eAvoid mounting to \"moving parts\" such as the swingarm\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eModel-specific slip-on mufflers come with these joint pipes and brackets as a set.\u003cbr\u003eIf you are unsure about installation, please purchase a slip-on muffler or ask a custom shop.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cdiv class=\"goods-faq\"\u003e\n\u003cp class=\"goods-faq-h\"\u003eFAQ\u003c\/p\u003e\n\u003cdiv class=\"goods-faq-item\"\u003e\n\u003cp class=\"goods-faq-q\"\u003e\u003cspan\u003eQ \u003c\/span\u003eCan it be made even quieter with the separately sold baffle installed?\u003c\/p\u003e\n\u003cdiv class=\"goods-faq-a\"\u003e\n\u003cspan\u003eA\u003c\/span\u003e\u003cdiv\u003e\n\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00193_img-_5_-1.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003eExhaust exits the pipe through passage 1, returns inside through passage 2, and then flows to the rear end where the wool and baffle are.\u003cbr\u003e\u003cbr\u003eGreen circle: Passage 1  Blue line: Partition  Red circle: Passage 2\u003cbr\u003e\u003cbr\u003eYou can make it quieter by blocking holes in passages 1 and 2 to reduce the open area.\u003cbr\u003eThe easy way is to wrap metal tape around it a few times, but you could also weld them shut or, if your tools can reach, use bolts and nuts.\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eBlocking too much will noticeably reduce power,\u003cbr\u003eso if you block them, we recommend up to about 30% of each passage.\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003ePassage 1 has 32 holes and passage 2 has 28 holes.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c!--\/goods-faq--\u003e\u003cbr\u003e\u003chr size=\"1\" align=\"left\" width=\"100%\"\u003e\u003cbr\u003e","brand":"GOODS","offers":[{"title":"Default Title","offer_id":67445891432606,"sku":"G4-00192","price":19800.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/0000027565000.jpg?v=1790749606"},{"product_id":"p-127535","title":"Slim Cabton Muffler Stainless","description":"\u003cp class=\"midashi\"\u003eThe compact size is great\u003cbr\u003eStainless steel universal Cabton muffler\u003c\/p\u003e\u003cbr\u003eSlim, made of stainless steel.\u003cbr\u003eA universal Cabton muffler with a comfortable volume and a very pleasant crisp, punchy sound.\u003cbr\u003e\u003cbr\u003eFor cafe racers and classic styles, and thanks to its compact size, also for scrambler styles when mounted up high.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00189_img_4.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00189_img_6.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003chr size=\"1\" align=\"left\" width=\"100%\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eStainless.\u003cbr\u003eHighly durable stainless steel\u003c\/p\u003e\u003cbr\u003eMade of stainless steel, which deteriorates little over time and is highly durable.\u003cbr\u003eEnjoy the characterful patina it develops over time\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00189_img_5.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00189_img_1.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eMulti-stage expansion silencing structure\u003c\/p\u003e\u003cbr\u003eMulti-stage expansion silencing structure for a moderate volume\u003cbr\u003e\u003cbr\u003e\u003ciframe width=\"600\" height=\"400\" src=\"https:\/\/www.youtube.com\/embed\/MsSJbBD37Vo?si=SYrtNKxmMvuQ9R2x\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00189_img_2.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00189_img_3.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003chr size=\"1\" align=\"left\" width=\"100%\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eSize\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00189_size01.png\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00189_size02.png\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00189_size03.png\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00189_size04.png\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eMaterial\u003c\/p\u003eStainless steel\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eContents\u003c\/p\u003eMuffler x1  Band x1\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eFitment\u003c\/p\u003eUniversal\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eSound level (reference)\u003c\/p\u003e*Measured on an SR400\u003cbr\u003e1200rpm　76.7db\u003cbr\u003e3250rpm　92.7db\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eAbout installing universal mufflers\u003c\/p\u003e\u003cbr\u003eInstalling a universal muffler requires modification, some ingenuity and the necessary parts to fit your bike.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/howtofitting_universalmuffler2024.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi3\"\u003e1 • About the inlet diameter\u003c\/p\u003ePlease check the inlet diameter listed in the product description.\u003cbr\u003eIf the inlet diameter does not match, a separate joint pipe or spacer is required.\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi3\"\u003e2 • About mounting\u003c\/p\u003eThe muffler body needs to be mounted to the frame.\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eAvoid mounting to \"moving parts\" such as the swingarm\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eModel-specific slip-on mufflers come with these joint pipes and brackets as a set.\u003cbr\u003eIf you are unsure about installation, please purchase a slip-on muffler or ask a custom shop.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e","brand":"GOODS","offers":[{"title":"Default Title","offer_id":67446356574366,"sku":"G4-00189","price":27500.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/0000027535000.jpg?v=1790759952"},{"product_id":"p-127562","title":"Dedicated Baffle for MEGAPHONE MUFFLER Series - GOODS ESPECIALLY","description":"\u003cbr\u003e\u003cp class=\"midashi\"\u003eMEGAPHONE MUFFLER\u003cbr\u003eOptional dedicated baffle\u003c\/p\u003e\u003cbr\u003eFor those who want even more silencing, we also offer an additional silencing baffle made for the GOODS-MEGAPHONE series.\u003cbr\u003eEasy to install: just remove the end cap and secure it with one bolt.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00187_img_3.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e*Measured on an SR400　\u003cbr\u003e1200rpm:82.4db\u003cbr\u003e3500rpm:92.0db\u003cbr\u003e\u003ciframe width=\"600\" height=\"400\" src=\"https:\/\/www.youtube.com\/embed\/6cnJbyMhsNc?si=Vep66DeO5A2HPgnJ\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003chr size=\"1\" align=\"left\" width=\"100%\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eSize\u003c\/p\u003eLength: approx. 100mm\u003cbr\u003eOuter diameter: approx. 36mm\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eMaterial\u003c\/p\u003eSteel\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eContents\u003c\/p\u003eBaffle, mounting bolt, nut x1\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eFitment\u003c\/p\u003eUniversal\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi3\"\u003ePlease note\u003c\/p\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eRacing use only, not for use on public roads\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e","brand":"GOODS","offers":[{"title":"Default Title","offer_id":67446368862366,"sku":"G4-00187","price":3850.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/0000027562000.jpg?v=1790760049"},{"product_id":"p-127563","title":"REVERSE CONE MEGAPHONE MUFFLER Chrome - GOODS ESPECIALLY","description":"\u003cbr\u003e\u003cp class=\"midashi\"\u003eGOODS ESPECIALLY\u003cbr\u003eOriginal universal silencer \"MEGAPHONE\" series\u003c\/p\u003e\u003cbr\u003eGOODS original megaphone silencer made of steel with a chrome-plated finish.\u003cbr\u003eA wide lineup of end caps, from the classic trumpet type to the racy open end.\u003cbr\u003eDeveloped in-house, this product uses a single expansion chamber + glass wool sound-absorbing design for a structure that resists deterioration over time.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00190_202505_2.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00190_202505_1.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eGOODS DESIGN\u003cbr\u003eGOODS original design\u003c\/p\u003e\u003cbr\u003eA GOODS original design based on the UNIVERSAL mufflers of the past.\u003cbr\u003eWe offer a wide lineup, from the classic trumpet type to the racy open end\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00190_202505_6.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00190_202505_3.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eHighly durable.\u003cbr\u003eGOODS's original sound-absorbing design\u003c\/p\u003e\u003cbr\u003eConventional imported universal mufflers, such as reverse cone mufflers, use a thick straight perforated core with wool, so many lose their silencing ability quickly,\u003cbr\u003ebut this product, developed in-house, uses a single expansion chamber + glass wool sound-absorbing design.\u003cbr\u003eBecause it relies less on the wool, the structure resists deterioration over time.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00193_img_5.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eThe wool can easily be repacked with our \u003ca href=\"https:\/\/www.goods-co.net\/products\/detail.php?product_id=102896\" target=\"_blank\"\u003eGlass Wool (Part No. G4-00093)\u003c\/a\u003e 、\u003ca href=\"https:\/\/www.goods-co.net\/products\/detail.php?product_id=102897\" target=\"_blank\"\u003eStainless Wool (Part No. G4-00092) \u003c\/a\u003eproducts\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eJust the right volume.\u003cbr\u003eSingle expansion chamber + glass wool structure\u003c\/p\u003e\u003cbr\u003eConventional universal mufflers often have a wool-only straight-through design that silences poorly when the throttle is snapped open and tends to be very loud,\u003cbr\u003ewhereas our original \"MEGAPHONE\" uses an expansion chamber + a restricted straight path to deliver strong silencing even when the throttle is snapped open.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eWe also refined the shape and structure of the end cap to reduce wind noise and the harsh tone of conventional products.\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eWithout the optional silencing baffle\u003cbr\u003e\u003cbr\u003e\u003ciframe width=\"600\" height=\"400\" src=\"https:\/\/www.youtube.com\/embed\/6cnJbyMhsNc?si=Vep66DeO5A2HPgnJ\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003cbr\u003e*Measured on an SR400　\u003cbr\u003e1200rpm:87.4db\u003cbr\u003e3500rpm:98.7db\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eAn optional dedicated baffle is also available\u003c\/p\u003e\u003cbr\u003eFor riders who want it even quieter, we also offer an additional silencing baffle dedicated to the MEGAPHONE series.\u003cbr\u003eEasy to install: just remove the end cap and secure it with one bolt.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00187_img_3.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e*Measured on an SR400　\u003cbr\u003e1200rpm:82.4db\u003cbr\u003e3500rpm:92.0db\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eFits the widely compatible φ45mm.\u003cbr\u003eSlide rail mount, handy when making brackets\u003c\/p\u003e\u003cbr\u003eThe inlet diameter fits the widely compatible φ45mm.\u003cbr\u003eThe bracket uses a slide rail, making position adjustment easy when making universal or one-off brackets.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00193_img_4.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eSwaps directly with conventional universal mufflers\u003c\/p\u003e\u003cbr\u003eThe bracket is positioned almost the same as on conventional reverse cone mufflers, so if you already have one installed, you can fit this product with the same bracket and inlet diameter.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00193_img_6.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi3\"\u003ePlease note\u003c\/p\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eOnly the mufflers listed, which we sold in the past, are supported.\u003cbr\u003e\u0026gt; Reverse cone muffler (Part No.: 80-84030)\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eCompatibility with universal mufflers sold by other companies is unknown.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003chr size=\"1\" align=\"left\" width=\"100%\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eSize\u003c\/p\u003eLength: approx. 462mm\u003cbr\u003eMax diameter: approx. φ95mm\u003cbr\u003eInlet diameter: φ45.3mm\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eMaterial\u003c\/p\u003eSteel\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eContents\u003c\/p\u003eSilencer x1\u003cbr\u003eMuffler end x1\u003cbr\u003eMuffler band x1\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eFitment\u003c\/p\u003eUniversal\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eSound level (reference)\u003c\/p\u003e*Measured on an SR400\u003cbr\u003e1200rpm:87.4db\u003cbr\u003e3500rpm:98.7db\u003cbr\u003e\u003cbr\u003e*With optional baffle installed\u003cbr\u003e1200rpm:82.4db\u003cbr\u003e3500rpm:92.0db\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi3\"\u003ePlease note\u003c\/p\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eRacing use only, not for use on public roads\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eAbout installing universal mufflers\u003c\/p\u003e\u003cbr\u003eInstalling a universal muffler requires modification, some ingenuity and the necessary parts to fit your bike.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/howtofitting_universalmuffler2024.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi3\"\u003e1 • About the inlet diameter\u003c\/p\u003ePlease check the inlet diameter listed in the product description.\u003cbr\u003eIf the inlet diameter does not match, a separate joint pipe or spacer is required.\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi3\"\u003e2 • About mounting\u003c\/p\u003eThe muffler body needs to be mounted to the frame.\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eAvoid mounting to \"moving parts\" such as the swingarm\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eModel-specific slip-on mufflers come with these joint pipes and brackets as a set.\u003cbr\u003eIf you are unsure about installation, please purchase a slip-on muffler or ask a custom shop.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cdiv class=\"goods-faq\"\u003e\n\u003cp class=\"goods-faq-h\"\u003eFAQ\u003c\/p\u003e\n\u003cdiv class=\"goods-faq-item\"\u003e\n\u003cp class=\"goods-faq-q\"\u003e\u003cspan\u003eQ \u003c\/span\u003eCan it be made even quieter with the separately sold baffle installed?\u003c\/p\u003e\n\u003cdiv class=\"goods-faq-a\"\u003e\n\u003cspan\u003eA\u003c\/span\u003e\u003cdiv\u003e\n\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00193_img-_5_-1.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003eExhaust exits the pipe through passage 1, returns inside through passage 2, and then flows to the rear end where the wool and baffle are.\u003cbr\u003e\u003cbr\u003eGreen circle: Passage 1  Blue line: Partition  Red circle: Passage 2\u003cbr\u003e\u003cbr\u003eYou can make it quieter by blocking holes in passages 1 and 2 to reduce the open area.\u003cbr\u003eThe easy way is to wrap metal tape around it a few times, but you could also weld them shut or, if your tools can reach, use bolts and nuts.\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eBlocking too much will noticeably reduce power,\u003cbr\u003eso if you block them, we recommend up to about 30% of each passage.\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003ePassage 1 has 32 holes and passage 2 has 28 holes.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c!--\/goods-faq--\u003e\u003cbr\u003e\u003chr size=\"1\" align=\"left\" width=\"100%\"\u003e","brand":"GOODS","offers":[{"title":"Default Title","offer_id":67446369943710,"sku":"G4-00190","price":19800.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/0000027563000.jpg?v=1790760056"},{"product_id":"p-127564","title":"TRUMPET MEGAPHONE MUFFLER Chrome - GOODS ESPECIALLY","description":"\u003cbr\u003e\u003cp class=\"midashi\"\u003eGOODS ESPECIALLY\u003cbr\u003eOriginal universal silencer \"MEGAPHONE\" series\u003c\/p\u003e\u003cbr\u003eGOODS original megaphone silencer made of steel with a chrome-plated finish.\u003cbr\u003eA wide lineup of end caps, from the classic trumpet type to the racy open end.\u003cbr\u003eDeveloped in-house, this product uses a single expansion chamber + glass wool sound-absorbing design for a structure that resists deterioration over time.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00191_202505_5.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00191_202505_1.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eGOODS DESIGN\u003cbr\u003eGOODS original design\u003c\/p\u003e\u003cbr\u003eA GOODS original design based on the UNIVERSAL mufflers of the past.\u003cbr\u003eWe offer a wide lineup, from the classic trumpet type to the racy open end\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00191_202505_3.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00191_202505_4.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eHighly durable.\u003cbr\u003eGOODS's original sound-absorbing design\u003c\/p\u003e\u003cbr\u003eConventional imported universal mufflers, such as reverse cone mufflers, use a thick straight perforated core with wool, so many lose their silencing ability quickly,\u003cbr\u003ebut this product, developed in-house, uses a single expansion chamber + glass wool sound-absorbing design.\u003cbr\u003eBecause it relies less on the wool, the structure resists deterioration over time.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00193_img_5.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eThe wool can easily be repacked with our \u003ca href=\"https:\/\/www.goods-co.net\/products\/detail.php?product_id=102896\" target=\"_blank\"\u003eGlass Wool (Part No. G4-00093)\u003c\/a\u003e 、\u003ca href=\"https:\/\/www.goods-co.net\/products\/detail.php?product_id=102897\" target=\"_blank\"\u003eStainless Wool (Part No. G4-00092) \u003c\/a\u003eproducts\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eJust the right volume.\u003cbr\u003eSingle expansion chamber + glass wool structure\u003c\/p\u003e\u003cbr\u003eConventional universal mufflers often have a wool-only straight-through design that silences poorly when the throttle is snapped open and tends to be very loud,\u003cbr\u003ewhereas our original \"MEGAPHONE\" uses an expansion chamber + a restricted straight path to deliver strong silencing even when the throttle is snapped open.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eWe also refined the shape and structure of the end cap to reduce wind noise and the harsh tone of conventional products.\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eWithout the optional silencing baffle\u003cbr\u003e\u003cbr\u003e\u003ciframe width=\"600\" height=\"400\" src=\"https:\/\/www.youtube.com\/embed\/6cnJbyMhsNc?si=Vep66DeO5A2HPgnJ\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003cbr\u003e*Measured on an SR400　\u003cbr\u003e1200rpm:87.4db\u003cbr\u003e3500rpm:98.7db\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eAn optional dedicated baffle is also available\u003c\/p\u003e\u003cbr\u003eFor riders who want it even quieter, we also offer an additional silencing baffle dedicated to the MEGAPHONE series.\u003cbr\u003eEasy to install: just remove the end cap and secure it with one bolt.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00187_img_3.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e*Measured on an SR400　\u003cbr\u003e1200rpm:82.4db\u003cbr\u003e3500rpm:92.0db\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eFits the widely compatible φ45mm.\u003cbr\u003eSlide rail mount, handy when making brackets\u003c\/p\u003e\u003cbr\u003eThe inlet diameter fits the widely compatible φ45mm.\u003cbr\u003eThe bracket uses a slide rail, making position adjustment easy when making universal or one-off brackets.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00193_img_4.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eSwaps directly with conventional universal mufflers\u003c\/p\u003e\u003cbr\u003eThe bracket is positioned almost the same as on conventional reverse cone mufflers, so if you already have one installed, you can fit this product with the same bracket and inlet diameter.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00193_img_6.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi3\"\u003ePlease note\u003c\/p\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eOnly the mufflers listed, which we sold in the past, are supported.\u003cbr\u003e\u0026gt; Reverse cone muffler (Part No.: 80-84030)\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eCompatibility with universal mufflers sold by other companies is unknown.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003chr size=\"1\" align=\"left\" width=\"100%\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eSize\u003c\/p\u003eLength: approx. 563mm\u003cbr\u003eMax diameter: approx. φ95mm\u003cbr\u003eInlet diameter: φ45.3mm\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eMaterial\u003c\/p\u003eSteel\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eContents\u003c\/p\u003eSilencer x1\u003cbr\u003eMuffler end x1\u003cbr\u003eMuffler band x1\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eFitment\u003c\/p\u003eUniversal\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eSound level (reference)\u003c\/p\u003e*Measured on an SR400\u003cbr\u003e1200rpm:87.4db\u003cbr\u003e3500rpm:98.7db\u003cbr\u003e\u003cbr\u003e*With optional baffle installed\u003cbr\u003e1200rpm:82.4db\u003cbr\u003e3500rpm:92.0db\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi3\"\u003ePlease note\u003c\/p\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eRacing use only, not for use on public roads\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eAbout installing universal mufflers\u003c\/p\u003e\u003cbr\u003eInstalling a universal muffler requires modification, some ingenuity and the necessary parts to fit your bike.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/howtofitting_universalmuffler2024.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi3\"\u003e1 • About the inlet diameter\u003c\/p\u003ePlease check the inlet diameter listed in the product description.\u003cbr\u003eIf the inlet diameter does not match, a separate joint pipe or spacer is required.\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi3\"\u003e2 • About mounting\u003c\/p\u003eThe muffler body needs to be mounted to the frame.\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eAvoid mounting to \"moving parts\" such as the swingarm\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eModel-specific slip-on mufflers come with these joint pipes and brackets as a set.\u003cbr\u003eIf you are unsure about installation, please purchase a slip-on muffler or ask a custom shop.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cdiv class=\"goods-faq\"\u003e\n\u003cp class=\"goods-faq-h\"\u003eFAQ\u003c\/p\u003e\n\u003cdiv class=\"goods-faq-item\"\u003e\n\u003cp class=\"goods-faq-q\"\u003e\u003cspan\u003eQ \u003c\/span\u003eCan it be made even quieter with the separately sold baffle installed?\u003c\/p\u003e\n\u003cdiv class=\"goods-faq-a\"\u003e\n\u003cspan\u003eA\u003c\/span\u003e\u003cdiv\u003e\n\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00193_img-_5_-1.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003eExhaust exits the pipe through passage 1, returns inside through passage 2, and then flows to the rear end where the wool and baffle are.\u003cbr\u003e\u003cbr\u003eGreen circle: Passage 1  Blue line: Partition  Red circle: Passage 2\u003cbr\u003e\u003cbr\u003eYou can make it quieter by blocking holes in passages 1 and 2 to reduce the open area.\u003cbr\u003eThe easy way is to wrap metal tape around it a few times, but you could also weld them shut or, if your tools can reach, use bolts and nuts.\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eBlocking too much will noticeably reduce power,\u003cbr\u003eso if you block them, we recommend up to about 30% of each passage.\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003ePassage 1 has 32 holes and passage 2 has 28 holes.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c!--\/goods-faq--\u003e\u003cbr\u003e\u003chr size=\"1\" align=\"left\" width=\"100%\"\u003e\u003cbr\u003e","brand":"GOODS","offers":[{"title":"Default Title","offer_id":67446371057822,"sku":"G4-00191","price":19800.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/0000027564000.jpg?v=1790760063"},{"product_id":"p-127566","title":"RACING MEGAPHONE MUFFLER Chrome - GOODS ESPECIALLY","description":"\u003cbr\u003e\u003cp class=\"midashi\"\u003eGOODS ESPECIALLY\u003cbr\u003eOriginal universal silencer \"MEGAPHONE\" series\u003c\/p\u003e\u003cbr\u003eGOODS original megaphone silencer made of steel with a chrome-plated finish.\u003cbr\u003eA wide lineup of end caps, from the classic trumpet type to the racy open end.\u003cbr\u003eDeveloped in-house, this product uses a single expansion chamber + glass wool sound-absorbing design for a structure that resists deterioration over time.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00193_202505_3.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00193_202505_1.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eGOODS DESIGN\u003cbr\u003eGOODS original design\u003c\/p\u003e\u003cbr\u003eA GOODS original design based on the UNIVERSAL mufflers of the past.\u003cbr\u003eWe offer a wide lineup, from the classic trumpet type to the racy open end\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00193_202505_7.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00193_202505_6.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eHighly durable.\u003cbr\u003eGOODS's original sound-absorbing design\u003c\/p\u003e\u003cbr\u003eConventional imported universal mufflers, such as reverse cone mufflers, use a thick straight perforated core with wool, so many lose their silencing ability quickly,\u003cbr\u003ebut this product, developed in-house, uses a single expansion chamber + glass wool sound-absorbing design.\u003cbr\u003eBecause it relies less on the wool, the structure resists deterioration over time.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00193_img_5.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eThe wool can easily be repacked with our \u003ca href=\"https:\/\/www.goods-co.net\/products\/detail.php?product_id=102896\" target=\"_blank\"\u003eGlass Wool (Part No. G4-00093)\u003c\/a\u003e 、\u003ca href=\"https:\/\/www.goods-co.net\/products\/detail.php?product_id=102897\" target=\"_blank\"\u003eStainless Wool (Part No. G4-00092) \u003c\/a\u003eproducts\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eJust the right volume.\u003cbr\u003eSingle expansion chamber + glass wool structure\u003c\/p\u003e\u003cbr\u003eConventional universal mufflers often have a wool-only straight-through design that silences poorly when the throttle is snapped open and tends to be very loud,\u003cbr\u003ewhereas our original \"MEGAPHONE\" uses an expansion chamber + a restricted straight path to deliver strong silencing even when the throttle is snapped open.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eWe also refined the shape and structure of the end cap to reduce wind noise and the harsh tone of conventional products.\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eWithout the optional silencing baffle\u003cbr\u003e\u003cbr\u003e\u003ciframe width=\"600\" height=\"400\" src=\"https:\/\/www.youtube.com\/embed\/6cnJbyMhsNc?si=Vep66DeO5A2HPgnJ\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003cbr\u003e*Measured on an SR400　\u003cbr\u003e1200rpm:87.4db\u003cbr\u003e3500rpm:98.7db\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eAn optional dedicated baffle is also available\u003c\/p\u003e\u003cbr\u003eFor riders who want it even quieter, we also offer an additional silencing baffle dedicated to the MEGAPHONE series.\u003cbr\u003eEasy to install: just remove the end cap and secure it with one bolt.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00187_img_3.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e*Measured on an SR400　\u003cbr\u003e1200rpm:82.4db\u003cbr\u003e3500rpm:92.0db\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eFits the widely compatible φ45mm.\u003cbr\u003eSlide rail mount, handy when making brackets\u003c\/p\u003e\u003cbr\u003eThe inlet diameter fits the widely compatible φ45mm.\u003cbr\u003eThe bracket uses a slide rail, making position adjustment easy when making universal or one-off brackets.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00193_img_4.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eSwaps directly with conventional universal mufflers\u003c\/p\u003e\u003cbr\u003eThe bracket is positioned almost the same as on conventional reverse cone mufflers, so if you already have one installed, you can fit this product with the same bracket and inlet diameter.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00193_img_6.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi3\"\u003ePlease note\u003c\/p\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eOnly the mufflers listed, which we sold in the past, are supported.\u003cbr\u003e\u0026gt; Reverse cone muffler (Part No.: 80-84030)\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eCompatibility with universal mufflers sold by other companies is unknown.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003chr size=\"1\" align=\"left\" width=\"100%\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eSize\u003c\/p\u003eLength: approx. 412mm\u003cbr\u003eMax diameter: approx. 94mm\u003cbr\u003eInlet diameter: φ45.3mm\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eMaterial\u003c\/p\u003eSteel\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eContents\u003c\/p\u003eSilencer x1\u003cbr\u003eMuffler end x1\u003cbr\u003eMuffler band x1\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eFitment\u003c\/p\u003eUniversal\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi2\"\u003eSound level (reference)\u003c\/p\u003e*Measured on an SR400\u003cbr\u003e1200rpm:87.4db\u003cbr\u003e3500rpm:98.7db\u003cbr\u003e\u003cbr\u003e*With optional baffle installed\u003cbr\u003e1200rpm:82.4db\u003cbr\u003e3500rpm:92.0db\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi3\"\u003ePlease note\u003c\/p\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eRacing use only, not for use on public roads\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi\"\u003eAbout installing universal mufflers\u003c\/p\u003e\u003cbr\u003eInstalling a universal muffler requires modification, some ingenuity and the necessary parts to fit your bike.\u003cbr\u003e\u003cbr\u003e\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/howtofitting_universalmuffler2024.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi3\"\u003e1 • About the inlet diameter\u003c\/p\u003ePlease check the inlet diameter listed in the product description.\u003cbr\u003eIf the inlet diameter does not match, a separate joint pipe or spacer is required.\u003cbr\u003e\u003cbr\u003e\u003cp class=\"midashi3\"\u003e2 • About mounting\u003c\/p\u003eThe muffler body needs to be mounted to the frame.\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eAvoid mounting to \"moving parts\" such as the swingarm\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eModel-specific slip-on mufflers come with these joint pipes and brackets as a set.\u003cbr\u003eIf you are unsure about installation, please purchase a slip-on muffler or ask a custom shop.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cdiv class=\"goods-faq\"\u003e\n\u003cp class=\"goods-faq-h\"\u003eFAQ\u003c\/p\u003e\n\u003cdiv class=\"goods-faq-item\"\u003e\n\u003cp class=\"goods-faq-q\"\u003e\u003cspan\u003eQ \u003c\/span\u003eCan it be made even quieter with the separately sold baffle installed?\u003c\/p\u003e\n\u003cdiv class=\"goods-faq-a\"\u003e\n\u003cspan\u003eA\u003c\/span\u003e\u003cdiv\u003e\n\u003cimg class=\"fancyzoom\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/G4-00193_img-_5_-1.jpg\" width=\"600\"\u003e\u003cbr\u003e\u003cbr\u003eExhaust exits the pipe through passage 1, returns inside through passage 2, and then flows to the rear end where the wool and baffle are.\u003cbr\u003e\u003cbr\u003eGreen circle: Passage 1  Blue line: Partition  Red circle: Passage 2\u003cbr\u003e\u003cbr\u003eYou can make it quieter by blocking holes in passages 1 and 2 to reduce the open area.\u003cbr\u003eThe easy way is to wrap metal tape around it a few times, but you could also weld them shut or, if your tools can reach, use bolts and nuts.\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003eBlocking too much will noticeably reduce power,\u003cbr\u003eso if you block them, we recommend up to about 30% of each passage.\u003cbr\u003e\u003cfont color=\"#FF0000\"\u003e*\u003c\/font\u003ePassage 1 has 32 holes and passage 2 has 28 holes.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c!--\/goods-faq--\u003e\u003cbr\u003e\u003chr size=\"1\" align=\"left\" width=\"100%\"\u003e\u003cbr\u003e","brand":"GOODS","offers":[{"title":"Default Title","offer_id":67446371680414,"sku":"G4-00193","price":18700.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/files\/0000027566000.jpg?v=1790760072"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0797\/3712\/7070\/collections\/389.jpg?v=1792738351","url":"https:\/\/www.goods-co.net\/en\/collections\/c-389.oembed","provider":"GOODS ONLINE SHOP","version":"1.0","type":"link"}