Ok I have a 2006 cobalt ls and it has given me problems so much. I recently had a supercharger installed and it was ok until I was told I needed a heat exchanger. I got the heat exchanger and headers and exhaust all from zzp. Sadly I do not exactly know how to install the heat exchanger. Recently my car started smoking from the little hole on top of the engine that connects to the intake. Also when I am at high RPM in third or higher there is this weird sound. I have an air to fuel ratio gauge that I don't know how to install. I have a tune from trifecta that won't work because my car isn't reading boost so says Vince from WOT tuning because my MAF isn't wired to read it correctly. And finally up to yesterday when I installed my headers and exhaust the car won't stay on for more than 20 seconds. PLEASE HELP!!!