19z28camaro02

Headers, do i need an aftermarket y pipe? Reducers? What does it meaned, "tuned". I've been looking at these.

Rice Killer87

Yes,you will need an aftermarket y-pipe. An exhaust shop could fabricate one up for you as well.

2000GTP

Pacesetter sells their own off-road y-pipe, it goes for 130.00 on that site. Its a 3" y-pipe so it will slide right over the headers so you won't need reducers in that aspect. However, if you are going to mate that y-pipe up to a stock catback, then you will need to have some sort of reducer or just alot of welds built up to compensate for the exhaust size variances. Tuning comes into play when you are dealing with headers that do not have the AIR or EGR systems or if you have a dual cat car with rear 02 sensors. If you remove any of these systems, you will need to have them tuned out of your PCM to avoid the SES light.