I'm wanting to pick up JBA Headers and H-pipe with cats to match up with my Borla cat-back. Will this setup cause any CEL lights or other issues? I set up is leading to a Kenne Bell by Thanksgiving. Just wanted to know if anyone is using this or knows of any issues. Do you think this will be loud. I have already gotten use to the Borlas. Thanks
Patricia

 

You should get it re-tuned because the a/f ratios will change and also the o2 sensors will be farther away from the exhaust valves than the computer expects them to be. With a custom tune, I have yet to throw a related code since I installed mine 2 years ago.

As for sound, it will get louder, but whether it's too loud is going to depend on your own taste. I had Bassani cans on mine, and after installing JBA longtubes with catted H, it was too loud for me and I went back to the stock cans. Sounds awesome now. I had a parking attendant tell me a few days ago that my car sounded so sweet, he could listen to it all day long.