I recently installed a Borla high-flow exhaust on my 2002 A4 Quattro. Just for kicks I added a Random Technology high flow cat. The horsepower increase is nice and the deep sound is awsome. I recently started getting an o2 sensor (check engine) light. Anyone have a remendy?

 

Anyone who needs a nice A4 photo framed please let me know. I just started framing some kick *** photos.

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do a o2 sensor spacer mod man...get a pack of HELP! spark plug nonfoulers, drill one out to a 1/2 inch, and leave the other, screw the 1/2 incher into the still plain one, and put inot the pipe...and vola your cel will go away, give it time.