Thread: DIY Exhaust Mod – Gain of 10+ HP!!!
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Old 02-10-2015, 05:34 PM   #260
KRAM36
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Join Date: Feb 2013
Location: Funville
Posts: 2,112
Garage
I did this to my car today, except I used too long of a drill bit and went all the way through the muffler.

Actually sounds pretty good lol
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