Year: 2009-2016 Make: Harley Davidson 2009-2016 Harley Touring Bob Cat Full Exhaust System D&D 2 into 1 Bob Cat Exhaust pipe. Details All D&D Bob Cat full systems are equipped with heat shields,exhaust gaskets, bolt kit and baffles. Each exhaust system is designed and dyno tested in our facilities. Our testing is done with the Harley Tuner's. Every pipe is designed to increase low-end torque and horsepower. Notes: At idle, the motorbike is deep, boomy and full of character. Not only does the pipe look good, it is a wonderfully sounding experience for the rider. Blueing and Discoloration are caused by Improper Tuning and will not be covered under Warranty D&D Performance Exhaust Systems are designed for close course racing applications only.