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turnkey42 · 07-27-2002, 03:59 PM

I have 01 gt thinking of removing the cats,leaving the mini cats on,then installing performance mufflers ( flowmasters or dynomax)question , would there be any hp gain by removing the cats and would it be to loud without the cats,or would it be better to leave the cats and install just the mufflers.

07-27-2002, 03:59 PM	#1
turnkey42 Registered Member Join Date: Mar 2002 Location: hudson michigan Posts: 4	cat convertos I have 01 gt thinking of removing the cats,leaving the mini cats on,then installing performance mufflers ( flowmasters or dynomax)question , would there be any hp gain by removing the cats and would it be to loud without the cats,or would it be better to leave the cats and install just the mufflers.