HPI-EXM8B-S Stainless Steel 2-Into-1 Full Length Exhaust for 2017-Newer M8 Touring Models:
From the company that specializes in Harley-Davidson performance builds and larger throttle bodies. HPi exhaust systems are 100% handmade in USA, TIG welded, and feature a perforated stainless muffler interior. Offered in a stainless finish, these exhausts are designed with performance in mind. Includes 18mm O2 ports with reduces for 12mm.
Installing an aftermarket header system or full system such as this requires additional tuning. If you do not have a tuner, we recommend a ThunderMax or a Power Commander V.