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Green///Hell · 04-21-2010, 02:47 PM

Damn sounds good, I need to remove my primary cats as well. I'm pretty sure I'm choking out a bit of power by keeping the stock primarys

04-21-2010, 02:47 PM	#21
Green///Hell Colonel 183 Rep 2,872 Posts Drives: 991 GT3, F15 X5, 1199S Join Date: Feb 2009 Location: Chicago iTrader: (5)	Damn sounds good, I need to remove my primary cats as well. I'm pretty sure I'm choking out a bit of power by keeping the stock primarys
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