Rough Crafts Finned Air Cleaners Chrome Chrome Quiet Core Baffle This cat back silencer and

This cat back silencer and tail pipe is designed as a one piece unit that slips onto the stock header system leaving the stock emissions components in operation

2007-2011 Yamaha WR 450 F - Notes: 2007-2010Must use YZ250F/450F '06-'09 shrouds

Championship proven

32 clicks compression adjustment

Specifically engineered to provide unparalleled durability and performance in a single

Rough Crafts Finned Air Cleaners Chrome Chrome Quiet Core Baffle This cat back silencer andEach Rough Crafts Finned Air Cleaner features a hidden breather that is O ringed at the heads, passes through the backing plate and exits at the mouth of the throttle body through proprietary shooter tubes. This eliminates the need for any external hoses or hardware. Each backing plate is CNC machined from forged aluminum. Features Arlen Ness Big Sucker breathing technology. Radius air inlet provides unobstructed airflow.. Available in Chrome and