yea- if you go to quadratec.com, they have a Banks header- its the only company that makes a header that i know of... go to carsound.com- they have high flow cats and exhaust, direct fit, if youre re-doing the whole exhaust. unless you live in Cali, then youre kinda stuck with what you have...
Borla, Banks, Pacesetter, Clifford all make headers for the 2.5L.
Even if you lived in CA, you can change out your whole exhaust...