Quote:
Originally Posted by Skiddish
Must have missed an original thread on this.
Would be curious to see what people would get with cat back/CAI and the tune. I've heard tons of mixed reviews on the various chips out there for the S54.
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Cat back doesn't really add anything on this platform.
Can't speak for other intakes but the only one I have seen gain power is the Gruppe M which made 6 BHP. So the dyno graphs above would be accurate plus around 6 BHP for a Gruppe M.