Thread: DIY Exhaust Mod – Gain of 10+ HP!!!
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Old 12-10-2016, 04:50 PM   #291
geetee
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Join Date: Nov 2009
Location: PA
Posts: 170
I'm finally happy with sec. cat delete. 2 holes each pipe. 1.5 inch and 1 inch holes on each side. No drone and decently loud. 03 2.7
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