Im removing the cats on my car but im not sure if i should do it or if i should wait until i get my headders. Another thing, should i stay with the 3inch pipe or make it into a 2.5? What about the sensors? Any info u guys have would be great. Im guessing i should get used to rasp too. What have been your experiences?

 

why go to a 2.5" pipe?, if you run a ORP you'll need 02's simms for the rear,
if your not going to get headers for a while them maybe do it. In the long run, you might be spending more money or doing something twice.

 

Keep it a 3" y-pipe. Smaller is definantly not better. Get some 02 simms and you'll be fine.

 

3" ORP and O2 Simms, Got the same mod!!!!