I'm looking to piece an exhaust together on a budget all 3" of course, I know I want a vibrant 1149 and two resonators, it looks like $250 so far with just the resonators and muffler and I want this to come in under $400 total. I'm wondering how much straight pipe I'm going to need, I was thinking like 8'. Has anyone made their own exhaust, and what design works best? I was thinking straight back from the DP a 45degree before the carrier and another 45degree going back to straight into the muffler. Any feed back would be appreciated, my design thoughts come from the Raptor Racing and BIC stealth systems.