2:1 Fat Cat is a stepped header system at the head is 1 3/4" to 1 7/8" at collector and 2 1/2" where the muffler goes to the header.
All D&D full systems are equipped with heat shields,exhaust gaskets, bolt kit and baffles. Each exhaust system is designed and dyno tested in our facilities.
All of our testing is done with Harley SE Tuner. Every pipe is designed to increase low-end torque and horsepower. Performance increases are about 8 to 10 percent with the proper tune on the bike.
525-31-32 does have 18mm 02Bungs in the header pipe
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Details:
2:1 Fat Cat is a stepped header system at the head is 1 3/4" to 1 7/8" at collector and 2 1/2" where the muffler goes to the header.
All D&D full systems are equipped with heat shields,exhaust gaskets, bolt kit and baffles. Each exhaust system is designed and dyno tested in our facilities.
All of our testing is done with Harley SE Tuner. Every pipe is designed to increase low-end torque and horsepower. Performance increases are about 8 to 10 percent with the proper tune on the bike.
525-31-32 does have 18mm 02Bungs in the header pipe