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      07-20-2012, 04:49 PM   #23
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Drives: '11 E92 M3 ZCP
Join Date: Jan 2011
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Originally Posted by CCL16M3 View Post
This link is for a video comparing OEM, the perf mod, and the ACM mod....

Thanks CCL, I saw that video already but the video I was referring to was a video of the 4 pipe Perf mod compared to the 2 pipe Perf mod that you and your friend have, in which you noticed a difference.
I'm already planning the 2 pipe Perf mod and was curious if there was a noticeable difference between the 4 pipe and 2 pipe methods.
'12 Ducati Diavel
'06 E46 M3 (sold) | '97 325is - Dinan (sold)
'02 Z3 3.0 coupe (sold)
Past - '84 Ferrari 308 GTSI | '88 Ferrari 328 GTS | '05 Dodge Viper Copperhead Edition #180/300 | Audi S4
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