n52audi18t

I was thinking about a test pipe instead of my cat, decided it's probobally worth the money. My car is emmisions exempt and i would do the instal myself so no shop would have to worry about it. The question is that if you have one of these pipes did the O2 sensor after the cat go nuts because it's not reading what it should, i know the car will run fine, but it would cause a check engine light right?? Just wonderint some of the specifics of people that own one or use one on a car with an O2 sensor behind the cat.

Justin517

SOMONE POST, I want one too!

Yippers®

Use "Test&pipe" and/or testpipe