the thrush glasspack is the resonator you dont have to have a resonator on your car but if you dont put one it will be raspy as hell, i kept stock mufflers because its too hard to make these cars sound good with out spending the money for Borla, i only redid the exhaust because my mufflers had holes in them and i was putting the DP on anyway, i bought the thrush glasspack because my resonator was shot and the glasspack was like $20 and way cheaper then OEM and i got the mufflers off my boy, he had them laying around and he gave them to me for a good dealOriginally Posted by JesseBranham
