Gibson Superflow Mufflers are baffled, chambered, and louvered. Competing mufflers utilize a cheaper packing or screened design that will blow-out and grow louder over time. Gibson's POWER and SOUND advantages have made them #1 in aftermarket performance mufflers.
Gibson Superflow Mufflers utilize a superior design of chambers, baffles, and louvers to provide the optimum amount of flow to increase and maximize the low-end torque power band for people serious about towing and hauling (low to mid-range torque increase). Not to mention, this is also the ideal muffler to compliment the performance characteristics of your vehicle for performance oriented daily driving (increased H.P. and increased fuel economy).