Aluminum Racing Series Systems are a popular external disc racing exhaust upgrade for dirt bikes. They utilize our patented Tunable Disc Technology. Available for HondaXR200R, Honda XR250L / 250R / 400R, Honda XR600R, Honda XR650L, Kawasaki KLR600, KLR650 Tengai, Suzuki DR250S and Suzuki DR650S Euro.

They feature a Brushed Aluminum canister. The Steel core and high tech packing provide an electrifying ride every time.

The use of the tunable discs couple with a Closed End Cap serve as an Integrated U.S. Forest Service approved spark arrestor for endless hours of safe riding.

The core and packing are completely rebuidlable to help save you time and money.

Eight, 4” discs, a Closed End Cap and all necessary mounting hardware is included.

Add 4” discs to increase horsepower, exhaust tone and flow.

Subtract 4” discs to reduce sound and increase low-end torque.

How do you know which Universal Exhaust will fit your application? It’s easy! Click here and we’ll tell you how!