2009-2016 Harley-Davidson FLH / FLT
D&D 2 into 1 Boss Fat Cat Exhaust pipe.
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 exhuast 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 quietest baffle for motors 96" to 103"
The Perforated wrapped baffle is the medium sound baffle for motors 96" to 113"
The Perforated baffle is the very very loud baffle for motors 96" to 113"