D&D's 627Z-31 Billet Cat 2:1 Exhaust Pipe is made specifically for Harley-Davidson FLH/FLT (2009-2016)
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 exhuats 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-current).
At idle,the motorbike is deep,boomy and full of character. Not only does the pipe look good, it is a wonderully sounding experience for the rider.
Note: Blueing and Discoloration are caused by Improper Tuming 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.
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