FMF Powercore 4 Muffler 044141 1821-0363 M1 Hardware Kit A-Head fitting height and angle

A-Head fitting height and angle adjustment system

palm slider

PU suede thermo-welded microfiber for durability and abrasion-resistance

and springs

Energy dissipating shin plate features a new anatomic design for reduced surface area and weight-saving

FMF Powercore 4 Muffler 044141 1821-0363 M1 Hardware Kit A-Head fitting height and angleDeveloped to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is usable and compatible with every style of riding Aluminum construction and stainless steel Hi Flo end caps make for the perfect balance of performance and strength Removable spark arrestor included