I think I have my whole exhaust system figured out, but which cat-back system should I get? I am thinking I will go with DC JDM Stainless 4-1 header, and a Carsound 2.5in cat, but then what exhaust system should I go with? I was originally going to get a Comptech because I love the looks and the sound, but the piping is only 2.25in. Is there anything comprable, but with 2.5in piping? Thanks!