FMF Racing Mini Powercore 4 Aluminum Slip-On Muffler w/Stainless End Cap for Kawasaki KLX125 03-06/KLX125R 03-04/Suzuki DRZ125 03-16/DRZ125L 17-21FMF PowerCore 4 Slip On Exhaust Suzuki DR Z125 Kawasaki KLX125 When designing the PowerCore 4 Exhaust, FMF took a hard look at their top of the line mufflers to produce race inspired performance at a more economical price. The end result is a quality muffler that delivers improved torque, increased horsepower and rugged durability all at a price that won't break the bank. Features: Increase in power and torque through entire RPM range Durable