Ok, i need a new y pipe, mine is leaking, and the performance ones are a lot cheaper, like the budget exhaust. Ive heard precats arent necessary, but where are things like my o2 sensors gonna go, becuz i dont want it voiding my warranty by makin the check engine light go on, or anything like that, its half the cost of a stock one, and im all about stainless and performance, please just tell me how this works out. and if performance ones have places for the 02 sensor, thanks
sam-