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      12-08-2012, 07:49 AM   #14
S656MT
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Drives: 2013 E92 M3
Join Date: Nov 2012
Location: Driver's Seat

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Quote:
Originally Posted by pbonsalb View Post
I'd like to see dyno results since claims vary widely. BMW claims no gains for its performance rear exhaust, AA claims around 10 hp, someone reported that Eisenmann Race was worth 15 rwhp, and Akra claims something like 3 rwhp, but I don't think I have seen any dyno tests.
Read a bit more closely, there isn't a claim to every exhaust I reviewed having dyno results/power increase etc. I had a list of factors and some exhaust did well and some very poorly.
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