Gibson Dual Extreme
Reviewed By Paul W (Capitola, CA) Reviewed for a
GMC Yukon XL
—11/1/2009 7:48 PM
My first upgrade was a 18" magnaflow universal muffler. Good for tooling around town, but the drone at highway speed was giving me migraines. The gibson is a very quiet exhaust by comparison. You can barely hear it in the cab, which is nice. If you are behind the car, it gives a nice mellow rumble. Performance boost is subtle but noticible. No fuel economy benifit over stock. The appearance is excellent, although I may get bigger tips in the future.