D&D's Concentric Flow Baffle System reduces the sound signature of the pipe and increases performance. It was designed in conjunction with the Engineering Department at the University of Texas at Arlington.

Improve tone, reduce bark and pump out the power by as much as 12% in horsepower and torque. Tested with Zippers Thunder-Max. Results with other tuners may vary.

D&D Pipe Options

# 551-31A:
Black pipe - aluminum sleeve

# 551-31B:
Black pipe - black sleeve

# 551-31C:
Black pipe - carbon sleeve.

Our new upswept 2 into 1 Bob Cat pipe is offered in Aluminum sleeve, Black sleeve or Carbon sleeve.

The Bob Cat system combined with the XR1200 delivers the power and agility like no other Harley-Davidson that you will see or hear.