Which gets better gains???

[TRD GT-S]

Universal custom setup or just buy a bolt on? And if i wanted to do a custom setup w/a apexi N1 how should it be done? thanks!

[Blastofo]

You will get better gains from a custom exhaust. Since most bolt ons are axle back and not cat back exhausts.

Personally. I just went with the trd exhaust. I don't think its worth having your car be really loud and obnoxious and risk getting a fix it ticket just to have 2 more horsepower.

If you are going all out competition style than go with the apexi N1. Not sure about how you want it rigged. Hopefully someone who knows more about this will jump in and give their input.