1984-2017 Harley Heritage Softail Fat Cat 2:1 Full Exhaust System

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Product Code: 580Z
Availability: In Stock
$799.00

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How to install or Remove a Baffle
How to care for Black D&D Exhaust
580-31-32 Part Numbers and Instructions
From Canada

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.


*CALIFORNIA CUSTOMERS MUST SIGN AND RETURN THE WAIVER FORM BEFORE WE CAN BUILD AND DELIVER THE EXHAUST SYSTEM*  CALL US FOR MORE DETAILS: (817) 834-8961

Year: 1984-2017
Make: Harley Davidson

1984-2017 Harley Heritage Softail Fat Cat Has a longer muffler to reach the end of the bags.

2:1 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.

  • 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.
Baffles
  • Louvered baffles are for 80" to Stock 103" motors
  • Perforated Wrapped baffles are for Stage 4 103" to 113" motors
  • Note: The inter core of the louvered baffle is 2 1/4"
  • Note: The inter core of the big boar baffle is 2 1/2"

Note:
Using Woods cams for best performance use the Perforated Wrapped Baffle

2:1 Fat Cat comes with 12mm and 18mm O2 sensor bungs.

Will not fit the 2013-2017 Breakout Softail beacuse of the oil tank.

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

Note:
Blueing and Discoloration are caused by Improper Tuning and will not be covered under Warranty

Notice:
D&D Performance Exhaust Systems  are designed for close course racing applications only.  Not for use on pollution controlled vehicles.

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