HemiDude
Spends too much time on here
IIRC, If you look inside the openings of the GT resonators and the stock resonators, the GTs look more open. There is a post on here somewhere that someone showed pics of the two for comparison.I listened to some sound clips. The G/T exhaust does sound very nice.
I'm wondering this also, can the resonators really be that much different? Typically resos are nothing more than glass-packs. How much different can they really be?? Why wouldn't a G/T muffler swap only be fine?