
Sierra 18-4456 Universal 3" Exhaust Flapper Includes 3" stainless steel clamp. Features: Compounded rubber flapper valves stops water from entering the exhaust system Constructed with weather...
Add to CartSierra mounting kit for center outlet exhaust elbow.
For: GM Small Block V8 305- 350 cu. in
For: GM Big Block 454 cu. in
Interchangeable with:
California Residents:
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov