99MonsterTrans

Does anyone know if there's any way to pass an emissions test (mines coming later in June) without the cat's? I also have many other modifications done to the car and I was wondering if I would just be wasting my time even going in there. Please Help?!?!?!

Kevin Lee 487

iTrader: (1)

I've talked to a few people who tuned the trouble code for the cats completely out of the computer.

I also had another guy tell me about this thing called a defouler. It tricks the O2s into thinking the cat is still there somehow.

sgtrgpfdps

I'm so dam glad michigan does't do that anymore ,what a pain in the ***!

carguy_24

When I lived in Missouri and had a jeep without any exhaust the trick was driving around and finding a shop that didn't care that your vehicle doesn't have cats. I lived in Missouri for only 2 years and have always lived in Illinois all the other time of my life. Good thing is there is no emission testing here in central Illinois so I'm glad I don't have to worry about that.

z28pat

iTrader: (10)

I just had my car tested in lake county and passed, no cats, long tubes with true duals , and its got a cam. I do have rear 02 simulators and the car has no codes, they just did the obdii test .

1949gmc

iTrader: (5)

I think that's the key in passing- no current codes and no stored codes.

01wss6

iTrader: (4)

If is all they do is plug it in to a computer your fine as long as you check engine light is off. I have the mods in my sig and pulled in to the emissions testing station and filled it with the smell of gas and left with the paper that said passed.

RPM WS6

iTrader: (3)

A search will reveal a lot of info on this topic. I know I have outlined it in detail in the past.

chevychase

Been through 4 times with no cats with no issues.

poltergeist 02

iTrader: (65)

The car in my sig passed. No cats, egr, air or rear o2's