what is better a catback or a turbo one want performance dont care how much?

Answer 1

Any performance exhaust upgrade will give you more power, ask your local places and they will show you what you need for your specific car, catback or FULL system will give you power but you need to tell them what YOU want, then they can tell you how!!

Answer 2

turbo-back, they are about $600USD for a good one, BTW that kind of car do you have? oh and the obviously the turbo back only works on cars with turbo chargers