Stainless Bros exhaust valves and controllers

Stainless Bros 304 Stainless Steel exhaust valves are perfect for anyone looking to build an exhaust system with a bypass valve or exhaust dump.
The normally open operation is how most factory valves work as it will stay open until manifold vacuum is applied. At full throttle the valve will be open, but under light load, the valve stays closed. This is great for any application looking for a tame exhaust at idle and in cruise, and a race inspired sound at wide open throttle. 
These normally open vacuum actuated valves can be used with or without the electronic actuator depending on your needs.

The normally closed operation will keep any flow diverted until the actuator reaches a positive boost pressure at which time the valve will open. This is great for any boosted application looking for a tame exhaust at idle and a race inspired sound at wide open throttle. Fully open by 5psi.

Electronic actuated valves ship with the valve only, no actuator.