BOLD MAGENTA part numbers are new for 2026 PARTS-UNLIMITED.COM 2026 | ATV/UTV EXHAUST EXHAUST 14 DISCLAIMER: *EMIS (EMISSIONS CATEGORIZATION CODE). SEE PAGES 4-6 FOR CATEGORY CODES, IMPORTANT EPA/CARB EMISSION DEFINITIONS AND REGULATORY COMPLIANCE AND NOTICE REGARDING NOISE REGULATIONS. PRODUCTS NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES IF NOT CATEGORIZED AS “1” OR “4”. FITS MODEL DESCRIPTION PART # EMIS* HONDA TRX450R 04-14 Anodized titanium slip-on muffler w/ carbon end cap 1831-0678 3 YAMAHA YFZ450 04-09, 12-15 Natural titanium slip-on 1831-0356 3 YFZ450R 09-22,YFZ450X 10-11 Anodized titanium system, w/ stainless steel MegaBomb header and carbon fiber end cap 1830-0410 3 Anodized titanium slip-on muffler, w/ carbon fiber end cap and MegaBomb stainless steel header 1831-0610 3 YFM700R Raptor 06-26 Natural titanium slip-on 1831-0359 3 FACTORY 4.1™ SYSTEMS AND SLIP-ON MUFFLERS •Complete systems and slip-on mufflers •Systems feature titanium PowerBomb header and mid pipe, except where noted •Titanium slip-on mufflers include a stainless steel mid pipe •The lightest mufflers and full systems available •Superior power and performance – horsepower improved throughout the rpm range •Feature exclusive proprietary Chamber Core and PowerBomb technology • Factory forward engineering centralizes mass, improves handling •Made from premium-quality American materials •Customize with performance tuning inserts and spark arrestor module FITS MODEL DESCRIPTION PART # EMIS* HONDA TRX450R 04-14 Spark arrestor muffler 1831-0676 3 YAMAHA YFZ450 04-09, 12-13 Spark arrestor muffler 1831-0358 3 YFZ450R 09-22,YFZ450X 10-11 Spark arrestor muffler 1831-0518 3 YFM700 Raptor 06-23 Hex spark arrestor muffler 1831-0648 3 THE Q SERIES SLIP-ON MUFFLERS •The Q series features advanced engineering to precisely locate baffles and chambers to absorb sound •Less mass to enhance power-to-weight ratio •Quiet power with minimal sacrifice for performance Q4 HEX •Developed over years of championship offroad racing •Twin-stage core design for lower sound output and extended life of packing material •Comes standard with spark arrestor •Fits stock and PowerBomb header 1831-0359 1831-0678 1831-0648
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