foo7887

01 trans am ls1 full exhuast, long tubes eliminated my cats, have numerous codes now, was told 02 simulators would get rid of the cat codes, is this true???

dr_whigham

iTrader: (49)

That or a tune, but if you threw all that on the car, you could definately benefit from a tune anyways; Mail order or dyno.

BlackScreaminMachine

iTrader: (17)

O2 Simms are crap, that number one!

2nd they do nothing to the computer to remove anything. They are supposed to give back a false signal of what the down stream O2 readings and supposedly will trick the PCM in thinking stuff is ok.

Your better off having them turned off. That will elimiate all your issues.

afastm6

iTrader: (1)

U cant buy o2 sims now unless someone has a set epa steped in and stop production of them a tune take care of those codes I had mine done last week lol

dr_whigham

iTrader: (49)

^^Weird^^.... SpeedInc has them