bomner12
New Member
I put extracters high flow cat and twin 2.5" cat back on my ss(5.7) and now has CEL coming up, got it checked out with tech 2 both o2 sensors throwing up codes, have been told that people with fords that have the same problem space out the sensors and it fixes the problem, any 1 heard or know of this working for commodores. just after a fix till I get cai and cam.. thanks