2004-2019 Sportster Bob Cat 2:1 Exhaust

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Product Code: 615Z
Availability: In Stock

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How to care for Black D&D Exhaust

Our exhaust systems are designed around stock configurations. If your motorcycle has modifications such as Lowered Suspension, Shocks, or Aftermarket Saddlebags, the exhaust system may not work as intended.

Year: 2004-2019
Make: Harley Davidson

Note: Will NOT FIT the NEW 2015-2016 XL1200T Super Low unless you change to regular mid-controls or forward controls.

Also will not fit the Roadster 13" shocks will hit the muffler.

615Z-31 ABQ,BBQ,CBQ A -Alum Sleeve B- Black Satin C - Carbon Fiber

615Z-32 ABQ,BBQ,CBQ A -Alum Sleeve B- Black Satin C - Carbon Fiber

2004-2019 Harley-Davidson Sportster motorcycles D&D 2 into 1 Bob Cat Exhaust pipe. 2:1 Bob 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 1/4" where the muffler goes to the header. 

  • All D&D 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.

Performance increases are about 8 to 10 percent with the proper tune on the bike are for Stock motors.

Perforated Wrapped Baffle 2004-2016 Bob Cat comes with 18mm and 12mm O2 bungs for the stock 02 sensors that comes on the bike.

All 2004-2016 Sportster model are required to be retuned with our exhaust.

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.
Dave Rash, Pope of Pipe

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. Not for use on pollution controlled vehicles.

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