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urr2slo · 10-07-2009, 01:24 AM

the cats will keep you from throwing check engine light for low cat eff. i went with the dynatech supermaxx long tubes with there h/f cats and a 3" magnaflow exhaust.

10-07-2009, 01:24 AM	#3
urr2slo Drives: 2010 2ss ss/rs abm, 2016 2ss/rs hbm Join Date: Feb 2009 Location: N. Phx, Az Posts: 1,332	the cats will keep you from throwing check engine light for low cat eff. i went with the dynatech supermaxx long tubes with there h/f cats and a 3" magnaflow exhaust.