Flowmasters are good. I have have dual Flowmasters and a Magnaflow resonator and it growls like a V8 (no kidding). I get comments on it all the time and it does some serious head turning. Please do not ever replace the resonator with a straight pipe, it sounds sooooooo raspy. Good luck.

2005 WR Blue Pearl Subaru Impreza WRX STi 2005 Silver Mazda 6s 5-Door ATX Bose Sound, Moonroof, Leather, Clear Tails, Sirius