Perforated baffles are for 96' to 113' motors the loudest range sound Performance increases are about 15 percent with the proper tune on the bike. Every pipe is designed to increase low-end torque and horsepower.

2:1 for a 2009-2016 Harley Touring modelīoss Fat Cat is a stepped header system at the head is 1 5/8' to 1 3/4' to 1 7/8' at collector and 2 1/2' where the muffler goes to the header.Īll Boss Fat Cat full systems are equipped with heat shields,exhaust gaskets, bolt kit and baffles.Įach exhaust system is designed and dyno tested in our facilities.ĭ&D's testing is done with the Harley Tuner's. RC Components Wheels, Exhaust, & Accessoriesĭ&D 2 into 1 'Boss' Fat Cat Exhaust pipe.