i would also suggest the thermal exhaust setup. excellent design and exhaust note. i dont think youd really "loose" any power. you must realize that in a N/A engine setup, there is a required amount of back-pressure that needs to be there. if not theres not enough velocity in the escaping exhaust gases, and causes a loss in the lower-band of power. which is why its not suggested to go over a 2.25" tubing on a N/A engine setup, to keep that exhaust gas at a higher escape velocity.

Thermal is a nice stainless steal setup that will last a long time (unless you're lowered and rip it off on a speed-bump or something)


-Vi