if i put a twin turbo into my mustang GT, how can i have a working exhaust if the headers send the exhaust from the block back into the turbos?

 

OK, 1. the exhaust is used to power the turbos it doesn't feed back into the engine.as the exhaust spins one side of the turbo the other side of the turbo sucks in CLEAN air through the compressor side which gives you your forced air induction. here's a link check it out and it should aswer all your questions. http://www.turbointernational.com/turbos.asp