cat to straight pipe
other than all the regs how will my 02 sensor's before and aft the cat make my engine run? And I am aware about all the regs and fines involved in doing this. Also I am putting in dual exhaust, how will it effect that pro's and con's?
Thanks in advance
Thanks in advance
well i dont know about ur state but in texas at least all u have to have is a cat an thats about it but dual is nice an sounds nice and performance wise im not a 100% sure but i know u lose alil bit when their is no muffler if im right .so chose wisly .do some true dual !
get a spark plug non fouler for the downstream o2 and it will take the tip of the sensor out of the exhaust stream and keep you from getting a cel. the upstream controls your air/fuel ratio and the downstream just tells you if your cat is working. you could also get an o2 simulator that will eliminate the cel but thats a lot more expensive.



