I don't think you can tie a brand to a good sounding exhaust; some magnaflows sound great on certain cars, some of the best sounding exhaust I have had was generic off brand shit. Saying a Corsa Exhaust is going to sound the best on his IS300 is dumb, sure the fitment will be a lot better with some of the higher quality stuff but sound is determined by many factors of the motor/exhaust combination.
Cut the resonator out, get a fart can and going dippin on Uni....
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