When you get new headers,y-pipe cat do you need to get your car tuned.

 

you dont need to, but it will help, I just recently got my car tuned via the mail from www.MAdz28.com he did a great job and the car feels so much better now.


Also i wouldnt install your 02 sensors untill you have took the car through a few heat cycles (about a week) because i hear the stuff that gets burt off the headers during the first few uses will mess up your 02 sensors

 

will it run ****ty or ne thing without tuning?

 

No it won't run bad at all w/o tuning, but it would not hurt to get it done.