My only thought on this would be to stick with a system that has dyno'd results and is inexpensive...go with Borla, or Bassani or Brullen, etc.....At least they are proven and you won't have to wait for someone to figure out what the right combo for your application is (with true-duals) or for someone to actually buid it (Easier said than done)

A1C Hodges, Christopher Active Duty USAF Sheppard AFB Texas;Westover ARB Chicopee, MA NECEG "Troll" formerly owned 2000 SVT Contour, with all kinds of goodies;)