Is exhaust too big?

907mge · 02-16-2010, 02:25 AM

so am i hurting performance over stock by going from a 2in collector to a 3in cat back considering after i do the hg it will be mostly stock except with a little port n polish, intake, and header?

02-16-2010, 02:25 AM	#3
907mge 20psi boost Join Date: Dec 2009 Location: Harrisburg Posts: 759	so am i hurting performance over stock by going from a 2in collector to a 3in cat back considering after i do the hg it will be mostly stock except with a little port n polish, intake, and header?