looks like i may get my hands on a new pv2... i want to get as much out of it as i can.. what have people done with it to get the power gains to a maximum? I've got a green performance air filter from tone installed already... and i know that ill be installing a resonator after the pv2 to bring the noise down a little bit... but is it worth getting new pipes bent to step up to 2.5" new routing paths? basically im looking to replicate the original pv catback system which ive heard gave substantial power gains.. so what did that consist of?