HD-FXDF-III-X5.00 Utah III slip-on mufflers. Euro 4. Polished

These Miller Utah III slip-on mufflers are engineered for the 2017 FXDF Fat Bob with the 103 cubic inch engine. This polished stainless steel set comes equipped with standard style polished billet aluminum end caps and carries full Euro 4 EC-BE approval, making them completely street legal across the EU. They offer a significant sound improvement, providing that deep Harley-Davidson tone while adding a noticeable boost of roughly 2-3 horsepower and 3-4 Nm of torque. Because they are designed to work with your stock head pipes, installation is a simple slip-on process that doesn't require an ECU modification. Sold as a set, the package includes the catalytic converter, removable dB killers for easy maintenance, and all the hardware needed for a clean install.