i personally dont have an exhaust. but i hear nothing bad about the megan exhaust systems. also i think youre referring to the TRD exhaust. all i hear about that is how its not worth the money you pay for it. its somewhere around 400 i belive but it only gives like 3-4hp whereas other promise like 6-7hp. i personally love the sound of the megan. but there are so many out there. borla, magnaflow, megan, trd, those are just a few. like bdis3 said, look around on youtube. helps a lot
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girls at college love the tC 
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