D&D 2 into 1 Boss Fat Cat 4" Exhaust System for '09-16 Harley Davidson Touring Models (Select Style)
- 2:1 Boss Fat Cat is a stepped header system at the head 1 5/8" to 1 3/4" to 1 7/8" at collector and and 2 1/2" where the muffler goes to the header.
- All Boss Fat Cat full systems a equipped with heat shields, exhaust gaskets, bolt kit and a baffle.
- Each exhaust system is designed and dyno tested at our facilities. All of our testing is done with that Harley SE Race Tuner.
- Every exhaust is designed to increase low-end torque and horsepower.
- Performance increases are about up to 15% with the proper tune on the bike.
- The Louvered wrapped baffle is the quitest baffle for motors 96" to 103"
- The Perforated baffle is the very very loud baffle for motors 96" to 113"
Notes:
- When using Woods Cams the best baffle to use is either of the Perforated Baffles.
- The Boss Fat Cat's starting in May 2014 comes with both 12mm and 18mm 02 bungs to fit bikes 2009-2015. The new part # has a Z in it for both size 02 bungs.
- Slant Cut Muffler work best on the CVO extended bag models.
- 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 as designed for close course racing applications only. Not for use on pollution controlled vehicles.
