Hi my name is nixie and I have 2007 supercharged cobalt ss, I live in colorado. I just have the k&n intake right now and I love it with a catback exhaust. I'm trying to get the borla exhaust cause the one I have now just sounds like a riced out Honda and then plan on the stage 3 kit but I am not sure if the zzp or the gm is better?? I heard good and bad things from both. I also plan on spraying 50 shot of nos or running e85 any suggestions?

 

Welcome! Go with zzp or ottp for your stage kit. They are basically the same thing except for the dual pass. Id never run nitrous on any of my cars, but thats just me. Alot of ppl on this forum have it. As long as e85 is always available id say go for it. It results in alot of extra power. Post up some pics of your ride.

 

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Welcome to Cobalt land, Once you enter there's no escape.