I was watching "Two Guys' Gargage" the other day on the Speed channel, and they were installing an exhaust brake on a big chevy diesel truck. I don't want to put anything like this on my car, but I was wondering why no one has. It works by closing a valve in the exhaust when the throttle is lifted. By restricting the exhaust flow, the engine slows down more rapidly. I wouldn't want this, but it seems like it would be beneficial to those who do a lot of racing. Has anyone else ever heard of this? Would it even work with a rotary?

 

I think its called a Jake Brake my dad use to have one on his big rig truck. he used it so he wouldnt lose his brakes on the downhills.

Arin

 

Does that cook up the turbo?