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chevylover5 · 05-02-2007, 02:02 PM

well the cat stays, its brand new and i need to pass emissions legally. but i really changed the air intake so i guess i wouldnt hurt to change the exhaust a lil more, but shouldnt i have some sort of back pressure?

05-02-2007, 02:02 PM	#16
chevylover5 Join Date: Jan 2007 Location: Willlow Grove, PA Posts: 142 iTrader: (1)	well the cat stays, its brand new and i need to pass emissions legally. but i really changed the air intake so i guess i wouldnt hurt to change the exhaust a lil more, but shouldnt i have some sort of back pressure? __________________