Since nobody wants to sell me a damn Comptech or Borla exhaust....Im planning on going to a muffler shop to get a custom exhaust. I was wondering if anyone has ever done a TRUE straight through design with very minimal bends. Also, I have the comptech race header so what should I match it up with.....60mm or 2.5 inch piping? Also, what kinda materials should I make it out of? It would be great if I could get my hands on some titanium but it would probably be hella expensive, so what kind of grade steel should I use? Im looking for something that would not be susceptible to rusting and something lightweight. And dont worry...mandrel bends it is!!