{"product_id":"crf450r-rx-2021-2024-crf450r-s-2023-2024-rs12-stainless-slip-on-exhaust-w-stainless-muffler-225852s320","title":"CRF450R\/RX 2021-2024 \/ CRF450R-S 2023-2024 RS12 Stainless Slip-On Exhaust, w\/ Stainless Muffler - 225852S320","description":"\u003ch2\u003eCRF450R\/RX 2021-2024 \/ CRF450R-S 2023-2024 RS12 Stainless Slip-On Exhaust, w\/ Stainless Muffler\u003c\/h2\u003e\n\n\u003cp\u003eThe Yoshimura RS-12 Stainless Slip-On is built for riders who want a precision-developed exhaust system for the latest Honda CRF450 platform. Developed over more than a year and tested in collaboration with HRC Honda Racing, Honda Japan, and MXGP World Champion Tim Gajser, the RS-12 focuses on optimized fit, smart packaging, and controlled sound with a volume insert—ready for moto, track days, and trail use.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e 225852S320\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Yoshimura\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Signature Series Exhaust System\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRS-12 asymmetrical muffler design to maximize internal capacity\u003c\/li\u003e\n  \u003cli\u003eIntegrated resonance chamber designed to manage sound and increase usable power\u003c\/li\u003e\n  \u003cli\u003eUnique RS-12 profile provides added clearance for tire and brake caliper\u003c\/li\u003e\n  \u003cli\u003eOval manifold design developed using FEA (Finite Element Analysis) and produced via hydroforming\u003c\/li\u003e\n  \u003cli\u003ePrecision-machined joints for a superior seal and exacting fit with full 360-degree contact\u003c\/li\u003e\n  \u003cli\u003eWorks-look matte carbon fiber end cap with detailed Yoshimura styling\u003c\/li\u003e\n  \u003cli\u003eInner-cap mounted end cap cover design to improve durability and ease servicing versus common sandwich-style mounts\u003c\/li\u003e\n  \u003cli\u003ePatent-pending Precision Taper Fit (PTF) insert ring for easier install\/removal of sound inserts and spark arresters\u003c\/li\u003e\n  \u003cli\u003eTapered muffler inlet design allows the system to be pushed forward to aid weight centralization\u003c\/li\u003e\n  \u003cli\u003eSound level feature: includes a \u003cstrong\u003eVolume Insert\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eProudly designed, developed, and made in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFitment \u0026amp; Notes\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Honda CRF450R\/RX (2021–2024) and CRF450R-S (2023–2024).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e Repack kits, optional inserts, and spark arresters are available separately. Sound insert\/spark arrester options listed by Yoshimura include INS-32-K (Volume Insert: Yes), INS-34-K (Volume Insert: No), and SA-21-K (Spark Arrestor: No).\u003c\/p\u003e\n","brand":"Yoshimura","offers":[{"title":"Default Title","offer_id":47761503748247,"sku":"225852S320","price":849.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0585\/4884\/6743\/files\/225850S320_CRF450R_2021_RS12_FS_SS-SS-CF_3Gray_db066980-dfce-4f50-a47f-c8ec2f9ab5a9.jpg?v=1777846656","url":"https:\/\/allamericanktm.com\/products\/crf450r-rx-2021-2024-crf450r-s-2023-2024-rs12-stainless-slip-on-exhaust-w-stainless-muffler-225852s320","provider":"All American KTM","version":"1.0","type":"link"}