{"product_id":"rpm-4616-01","title":"Full Exhaust Muffler RPM-67Racing Aluminum φ67x300 GSX400S Katana","description":"\u003cp\u003e【RPM 4616-01 Full Exhaust Muffler RPM-67Racing Aluminum φ67×300 GSX400S Katana Road Legal Rokunana Racing Motorcycle Two-Wheeler RPM】\n\u003cbr\u003e■Product Description\n\u003cbr\u003eThe RPM-67Racing is an exhaust system born from approximately 300 meticulous hand-made processes and TQC (Total Quality Control). It is an original muffler brand launched in 1998 as an F-TYPE replica model, without significant changes to the appearance of the RPM-4in2in1 F-TYPE, which was manufactured until 1989, or to the internal structure of the silencer, which is essential for sound quality.\u003c\/p\u003e\n\n\u003cp\u003e■Detailed Description\n\u003cbr\u003e●Exhaust Pipe\n\u003cbr\u003eThe 4-in-2-in-1 manifold system adopted suppresses exhaust interference characteristic of 4-cylinder engines, and in synergy with the precise exhaust port design, achieves excellent exhaust efficiency across all RPM ranges.\n\u003cbr\u003eFurthermore, its unique pipe length and optimized manifold play a crucial role in creating a sensual and refined exhaust note.\n\u003cbr\u003eSTKM11A (carbon steel pipe for machine structural purposes), which offers superior tensile strength and fatigue resistance, is selected as the material.\n\u003cbr\u003eEach component undergoes a precise polishing process by skilled craftsmen, followed by multi-layer plating using advanced surface treatment technology, achieving both exceptional aesthetics and long-term weather resistance.\n\u003cbr\u003e●Silencer\n\u003cbr\u003eThe φ67×300 size silencer, which produces a unique and exhilarating racing sound, achieves maximum silencing effect with minimum exhaust resistance by having a complete double-layer internal structure.\n\u003cbr\u003eMoreover, its lightweight and compact body has high rigidity and excellent resistance to vibrations under harsh operating conditions.\n\u003cbr\u003e●Silencer Outer Cover Lineup\n\u003cbr\u003eThe outer cover material is available in the following three types:\n\u003cbr\u003e・Aluminum alloy A6063S\n\u003cbr\u003e・Stainless steel SUS304 \/ mirror finish\n\u003cbr\u003e・Titanium TP270\n\u003cbr\u003e●Component Configuration\n\u003cbr\u003eThis is a full exhaust muffler consisting of a total of five parts: \"four front exhaust pipes (from the engine to the manifold)\" and \"one tail ASSY (from the manifold including the silencer).\"\n\u003cbr\u003e●Installation\n\u003cbr\u003eIt is fixed to the vehicle at two points: the engine exhaust port and the tail stay.\n\u003cbr\u003eWhen installing at the engine exhaust port, use the included RPM-manufactured free flange (exhaust holder).\n\u003cbr\u003e*Exhaust gaskets are not included, so you will need to purchase them separately.\n\u003cbr\u003e●Silencer Structure Requirements\n\u003cbr\u003eSound volume and back pressure cannot be adjusted in the new factory-shipped state.\u003c\/p\u003e\n\n\u003cp\u003e■Compatible Models\n\u003cbr\u003eSUZUKI\n\u003cbr\u003eGSX400S (GK77A)\u003c\/p\u003e\n\n\u003cp\u003e■Specifications\n\u003cbr\u003eSilencer Cover: Aluminum\n\u003cbr\u003eExhaust Pipe: Steel plating\n\u003cbr\u003eFitting Type: Full Exhaust\n\u003cbr\u003eSilencer Size: φ67×300\n\u003cbr\u003eOil Change: ×\n\u003cbr\u003eOil Filter Change: ×\n\u003cbr\u003eTandem: 〇\n\u003cbr\u003eRoad Legal: 〇\n\u003cbr\u003eProximity Exhaust Noise Value: 99db\u003c\/p\u003e\n\n\u003cp\u003e■Notes\n\u003cbr\u003e*This is for the muffler only. The vehicle in the image is for installation reference.\n\u003cbr\u003e*Images are for illustration purposes. Includes products with different sizes and colors.\n\u003cbr\u003e*Product design and specifications are subject to change without notice. Please be aware.\n\u003cbr\u003e*This product is made to order, so cancellations after ordering are not possible.\n\u003cbr\u003e*Due to made-to-order production, delivery may take some time. Also, the manufacturer may discontinue the product or change specifications without prior notice. Thank you for your understanding.\u003c\/p\u003e","brand":"アールピーエム(RPM)","offers":[{"title":"Default Title","offer_id":46676201898219,"sku":"rpm-4616-01","price":77647.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1021\/9499\/files\/rpm-4616-01.jpg?v=1754457239","url":"https:\/\/bikeman.jp\/en\/products\/rpm-4616-01","provider":"バイクマン","version":"1.0","type":"link"}