I love my Exhaust, but im sure you wouldnt like it, its clean and quiet

Greddy Evo 2 with ITR axle back, look into mixing and matching maybe? Keep in mind that the weakest link is the limit for the power, example: Dont get a Catback thats about 2.5-3" and get an axle back for 2.25, youll get only the power of a 2.25.
Just an idea, many people mix match their exhaust like i did, and i love it.