Quote:
Originally Posted by MikeYQM
Which axle-back are your friends using in the problem and problem free car?
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Both OEM, I should have said earlier.
The cars are identical and both have high miles, the only difference is the tune.
There are long threads about this issue and one tune comes up consistently: Alpine. I know Alex says there isn't a change under 4k rpm but there seems to be an issue of some kind related to the tune.