Originally Posted by Dirk McGurck

Like FP said, TPs, larger diameter exhaust, new intakes, and probably switching to an air-to-air intercooler, plus a tune, will easily put you over 400HP. My Mazdaspeed had all of that, with an off the shelf tune that bumped it 70HP.

Plus if they are turbo, Cobb will probably start supporting the platform since they already tune GT-Rs. So off the shelf tuning and support and probably easier to find a tuner than the current VQ.