Thread: Carbahn Stage 2 ECU tune Installed & Dragy Tested
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      07-26-2023, 10:55 AM   #73
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Drives: 2017 458/ YAS m4
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Quote:
Originally Posted by hova00 View Post
According to Carbahn it was an 11whp between stock downpipes amd catless.
Seems low to me but I guess they would know? Just going by past cars I’ve tuned. Never saw that small of a gain.
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