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calbert1999 · 04-22-2012, 09:13 AM

I'd think the cats would restrict air flow, anytime you allow more air to flow (in / out) it's a good thing.

04-22-2012, 09:13 AM	#17
calbert1999 Camaro SS Lover Drives: 2010 Camaro 2SS/RS Black IOM Join Date: Jun 2010 Location: Toronto, Ontario (Canada) Posts: 2,862	I'd think the cats would restrict air flow, anytime you allow more air to flow (in / out) it's a good thing.