Hey there I have a 07 g35s and I'm trying to make my own exhaust system. I'm not sure if I want a single exit or a dual. I found a cheap civic exhaust that's for a 06-12 sedan? Would that fit? Or a 09 g8 exhaust? I'm trying to go outside of the box. Any ideas?

 

Why not just do the ghetto mod and eliminate the muffler? That's about as cheap as you're going to get! My best advice is to leave your exhaust system alone, just enjoy the ride!
Gary