TT Dart -- Brainstorming

The MP T70 has 3 different exhaust housing available; .63, .84, .96. The .63 would be best for a street car, would come into full boost in the high 2000's rpm wise, the .84 would be a bit higher than that and the .96 higher still but even the .96 should be all in by 4k. Depends how tight you're planning on winding it.