first question, will adding headers, leaving smog crap on, and leaving cats on cause computer to screw up?
Second?-will adding headers, removing cats and removing smog crap screw up computer?
I currently have a stock 92 z, 350 tpi with flowmaster muffler, not cat back exhaust, and pondering a upgrade, thanks..

 

no to everything.

 

thanks!

 

i will back that no up and say NO

i am running open slp 1 3/4 headers right no, no smog pump, no cats, no a.i.r hoses.. and the SES light is not on.