2009-2016 Harley-Davidson FLH / FLT D&D 2 into 1 Billet Cat Exhaust pipe. 2:1 Billet 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 Billet 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 2 1/2" Vortex wrapped baffle core is for motors 96" to 113". Muffler housing is 4".
The Billet Cat comes with both 12mm and 18mm 02 bungs to fit bikes 2009-2016.
Blueing and Discoloration are caused by Improper Tuning and will not be covered under Warranty.
D&D Performance Exhaust Systems are designed for closed course racing applications only. Not for use on pollution controlled vehicles.