Originally Posted by PharmDZ

Just switched from Motordyne M370 intake manifold, Injen Intakes to AAM Intakes, Z1 upper and lower intake manifold (plenty of other mods, nothing else changed though). Final numbers after tuning went from 331whp 269lb/ft to 337whp 268lb/ft. Supposedly lost a little mid-range with the bigger intake tubing? I dunno - car feels awesome, dyno graph definitely shows more power in the higher rev range, but the numbers were sort of disappointing. I'll post the graph sometime soon.