Originally Posted by Steenport567
I agree. On the borla sight they say it does increase HP a certain percentage. Now, I don't think anyone here knows EXACTLY for sure. So, I would guess it would. I'm not saying that just because I have one. Maybe someone can find out. Or, maybe I will just call them and ask.
Since it is impossible to get a good dyno read on this car even Borla won't be able to help you with +/- HP numbers.
Honestly, with a catback you can except a small increase in HP, but not a huge amount. Chances are it won't even be noticeable. I'm just going to get one for the sound.