Pro Circuit 4" Quiet Insert 1-3/4" | PC4012-0008 Purple Gear It's built to fit perfectly

It's built to fit perfectly so install takes just minutes

Ride Hard with Real Strength

greaseless sealing ring ensures maximum contact with your airbox while acting as a breathable gasket for increased air passage

Arctic Cat 300 2X4 1998 to 2003

Quick release system presses straight against the retainer to eliminate side loading the valve and keepers

Pro Circuit 4" Quiet Insert 1-3/4" | PC4012-0008 Purple Gear It's built to fit perfectlySize: 1 3 4" 4" Flat Base Stainless Insert Description: The Pro Circuit Stainless Insert is available in multiple sizes to make your motorcycle quieter, without the loss of power. These inserts are available for both the 4" canister and 3. 5" canister.