SuperTrapp Fat Shot slip-on mufflers are 3.5" (9 cm) diameter, fully chrome plated that flare out to a 4" (10 cm) slash cut end. They feature straight-thru 2" (5.1 cm) diameter, pillow-pack wrapped performance cores with SuperTrapp's tunable disc system. By adjusting the number of discs, these new FatShots slip-ons have the ability to be the quietest performance muffler out there with a richer stock level sound, but enhanced performance. It performs better than stock in a sound compliant configuration. If you want to kick it up a notch, installing the recommended 12 discs sets the stage for maximum power. In this configuration, FatShots slip-ons provide a 15% hp gain and a 12% torque gain over stock, proving your exhaust does not have to be loud to make power. These slip-ons truly demonstrate the performance and customization that a tunable exhaust has to offer. Adding 4" discs will increase the horsepower, exhaust tone and flow. Subtracting 4" discs will reduce the sound and increase low-end torque.
FatShots slip-ons come complete with twenty-four 4" discs and all of the necessary hardware and mounting instructions, so you can get back on the road in no time. Works great on both stock and Big Bore engines and bolt straight on to your stock headers. Sold in pairs.