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Old 06-24-2012, 12:02 AM
xDan xDan is offline
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Location: Stockton, California
 
Join Date: Jun 2012
Posts: 8
Mein Auto: 97' E36 M3
I have a friend that straight piped his M3 and he dynoed it before and after and it gave him extra power ( i forgot the amount he has told me) not only that, but you also get that nice loud sound.
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