FMF Factory 4.1 Muffler CRF450R 2021-2023 041602 1821-2043 Taillight and License Plate Holder without Turn Signal — Taillight/License Plate Holder O-ring seal sits on the

O-ring seal sits on the top of the thread

Replace the fragile stock chain guide with this rugged aluminum guide

King pin kits (used in applications where a king pin was used rather than a ball joint) include all bushings

Poly-filled hood with bungie adjusters

0 bases (2 halves) and Teflon pads for wedge service

FMF Factory 4.1 Muffler CRF450R 2021-2023 041602 1821-2043 Taillight and License Plate Holder without Turn Signal — Taillight/License Plate Holder O-ring seal sits on theThe lightest mufflers available Superior power and performance horsepower improved throughout the rpm range Feature exclusive proprietary Chamber Core technology Factory Forward Engineering centralizes mass, improves handling Made from premium quality American materials Customize with performance tuning inserts and spark arrestor module Meet AMA sound requirements on most models; inserts available for others