BOLD MAGENTA part numbers are new for 2026 EXHAUST PARTS-UNLIMITED.COM OFFROAD | 2026 EXHAUST 9 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”. FACTORY 4.1 MINI SYSTEMS •Superior power than stock systems •Available with titanium and stainless steel headers •FMF’s Factory Forward Engineering centralizes mass and is less prone to crash damage •Innovative rear end cap features simple installation of tuning tip inserts or spark arrestor with the removal of four screws •Meet AMA and FIM sound requirements •QuietCore 94 dB insert included •Spark arrestor included in muffler FITS MODEL DESCRIPTION PART # EMIS* KAWASAKI KLX110R/RL 02-25 Anodized titanium w/ stainless steel header 1820-1967 3 Stainless steel w/ stainless steel header 1820-1966 3 SUZUKI DR-Z110 03-05 Anodized titanium w/ stainless steel header 1820-1967 3 Stainless steel w/ stainless steel header 1820-1966 3 YAMAHA TT-R110 08-26 Anodized titanium w/ stainless steel header 1820-1969 3 FACTORY 4.1 RCT (CONT) FITS MODEL DESCRIPTION PART # EMIS* KAWASAKI KX250 21-23 System w/ stainless steel aluminum muffler, carbon fiber end cap and stainless steel MegaBomb 1820-1985 3 System w/ blue anodized titanium muffler w/ carbon end cap 1820-1984 3 KX250/X 25 System w/ stainless steel aluminum muffler, carbon fiber end cap and stainless steel MegaBomb header 1820-2083 3 System w/ MegaBomb header, titanium w/ carbon fiber end cap 1820-2084 3 KX450 19-23 System w/ MegaBomb header, titanium w/ carbon fiber end cap 1820-1844 3 KX450 24-26 System w/ stainless steel aluminum muffler,titanium Megabomb header and carbon fiber end cap 1820-2045 3 System w/ blue anodized titanium muffler w/ carbon end cap 1820-2046 3 KTM 350 SX-F/XC-F 19-22 System w/ MegaBomb titanium header w/ carbon fiber end cap 1820-1874 3 350 XCF-W 20-22 System w/ stainless steel aluminum muffler, carbon fiber end cap and stainless steel MegaBomb header 1820-1954 3 System w/ blue anodized titanium muffler, carbon fiber end cap and stainless steel MegaBomb header w/ side panel 1820-1957 3 450 SX-F FE 18, System w/ MegaBomb stainless header, aluminum w/ carbon fiber end cap 1820-1875 3 450 SX-F/XC-F 19-22 System w/ MegaBomb titanium header w/ carbon fiber end cap 1820-1876 3 500 XCF-W 20-23 System w/ single stainless steel aluminum muffler, carbon fiber end cap and stainless steel MegaBomb header w/ side panel 1820-1959 3 System w/ single anodized titanium muffler, carbon fiber end cap and stainless steel MegaBomb header w/ side panel 1820-1960 3 YAMAHA WR 250F 23-24 System w/ stainless steel/aluminum slip-on muffler and stainless steel Megabomb header and carbon fiber end cap 1820-1840 3 System w/ blue anodized titanium, titanium Megabomb header and carbon fiber end cap 1820-1841 3 YZ 250F 19-26 System w/ stainless steel/aluminum slip-on muffler and stainless steel Megabomb header and carbon fiber end cap 1820-1840 3 System w/ blue anodized titanium, titanium Megabomb header and carbon fiber end cap 1820-1841 3 YZ 250FX 20-26 System w/ stainless steel/aluminum slip-on muffler and stainless steel Megabomb header and carbon fiber end cap 1820-1840 3 System w/ blue anodized titanium, titanium Megabomb header and carbon fiber end cap 1820-1841 3 WR450F 24-26 System w/ stainless steel/aluminum slip-on muffler and stainless steel Megabomb header and carbon fiber end cap 1820-2047 3 System w/ blue anodized titanium muffler w/ carbon end cap 1820-2048 3 YZ 450F 23-25 System w/ stainless steel/aluminum slip-on muffler and stainless steel Megabomb header and carbon fiber end cap 1820-2047 3 System w/ blue anodized titanium muffler w/ carbon end cap 1820-2048 3 YZ 450FX 24-26 System w/ stainless steel/aluminum slip-on muffler and stainless steel Megabomb header and carbon fiber end cap 1820-2047 3 System w/ blue anodized titanium muffler w/ carbon end cap 1820-2048 3 1820-1966
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