Originally Posted by
luke 3mps
Since the update on my tune/muffler upgrade im getting a noise(its like a fast flutter) and hesitation/lack of power above 4000rpm only on full throttle or boosting half or more. It wont do it in 1st and 2nd gear, only in 3rd and 4th when my car hit max torque and boost. Im thinking it my standard BPV when im hitting 19+psi..
Jim said it cant be the tune.
Thoughts guys?
I used to have this with my stock tune and mazdaspeed CAI.
My vote is boost cut...
MY16 WRX STi Crystal White Pearl
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