Like the tittle says, I am planning on buying an aftermarket exhaust manifold, but I dont know if it will fit my stock turbo,what brand do you guys recommend? or what specs should i look for? I would prefer it was street legal, but its not a major concearn. I am also planning on getting a custom built turbo-back exhaust and was wondering what would be a better diameter for the piping, either 2.5 or 3 inches.:dunno: