Quote Originally Posted by Scottydoggs View Post
your hitting the rev limiter in park. its normal.

and you loose boost psi with headers if you had 7 or 8 stock you'll have 5 now. the o2 wire would blow the fuse if it melted and then making the maf not work and could be why it was dogging up hill.
not trying to thread jack but why do you lose boost after headers? loss in back pressure or?