D&D 638Z-31B Fat Cat Black 2 into 1 Exhaust for 2018-Newer Harley M8 Softail Wide Tire Models

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$1,263.90

Starting July 1st, 2022 D&D will be passing on a 10% surcharge to all dealers and customers.  Our price reflects the surcharge.  This surcharge is expected to be temporary and will be removed when manufacturing costs go back down in the future.

The D&D 638Z-31B Fat Cat system is designed especially for the Breakout and Fat Boy wide tire Milwaukee Eights.  Does not fit Street Bob, Low Rider, Slim, Fat Bob, Deluxe, Sport Glide and Heritage Classic.  See 634Z-31B for those models.

 

Description

D&D 638Z-31B Fat Cat Black 2 into 1 Exhaust for 2018-Newer Harley M8 Softail Wide Tire Models

The D&D 638Z-31B Fat Cat system is designed especially for the Breakout and Fat Boy wide tire Milwaukee Eights.  Does not fit Street Bob, Low Rider, Slim, Fat Bob, Deluxe, Sport Glide and Heritage Classic.  See 634Z-31B for those models.

The Fat Cat is a stepped 2 into 1 header system at 1 3/4″-1 7/8″-2 1/8″ at collector -2 1/2″ where the muffler goes to the header. The M8 Softail Fat Cat full system is equipped with heat shields, exhaust gaskets, bolt kit and baffle and has a 4″ muffler housing with a louvered baffle and back cut tip.

It also comes with both 18mm and 12mm O2 bungs so it can be used with an auto tune module such as the Thundermax Auto Tune. This system is also designed to increase low end torque and horsepower.

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