I would like some opinions on mufflers for my gt 5-door. I went to Magnaflow's website and listened to their sound bytes. I don't know how true their sound was but I like that low tone that the imports had. I hate that high pitched VW bug sound that alot of the imports have. I just hope that replacing a muffler doesn't void a warranty... I have a bank forced warranty, funny thing is they say I "purchased it."