KTM47

iTrader: (1)

My Trans am does not have cats so I know that I need 02 sensor simulators. or else I am not going to pass emissions. But I don't know much about them... are either of these two things what I need? Is that all I need? Is there a difference in quality? I heard from some one that are like 85 dollars so these seem too cheap be what I actually need. Any help is appreciated. thanks
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gs462

iTrader: (4)

I dont know what kind of emission test you have there but here in Ohio They do a visual inspection along with an OBD test. you might want to look into it.

TransamGCS

iTrader: (2)

the o2 simulator tricks the computer making it think the cats are working properly once you plug them in and tie them up it will turn off your ses light yes they are 85 to 100 for a pair ws6store has them

KTM47

iTrader: (1)

they do a viual check also, but my last car, a z28 had hollow cats too and you could see pretty clearly that they were hollow, but it passed, I didnt know til after it passed that they werent there

sreve

iTrader: (3)

For what sims cost you have about paid for a mail order tune.
As for the visual remember that blind people need to eat too.

Fry_

^ +1 the cost of a o2 sims would cover most of the cost of a mail order tune.

stevez2885

iTrader: (9)

+2 with going with a mail order tune. I paid like 125+shipping for mine and had egr codes and cat codes deleted as well as tuning my bolt ons