Has anyone ever fitted an exhaust flap, like the one corvettes have, on their car? I want to make my exhaust open header when the flap/valve is open, and use the full exhaust when it is closed. I cant find a place that sell a large valve, anyone have any ideas? What I am planning is tapping into the 12 volt vtec signal, then running that to a relay that operates some kind of actuator. Any feedback would be appreciated. Oh and I dont know if this is the right section, feel free to move this thread
