Supertrapp Racing Series Tunable Aluminum Exhaust for Honda XR250R/XR400R 1996-2005

Aluminum Racing Series Systems are a popular external disc racing exhaust upgrade for dirt bikes. They utilize patented Tunable Disc Technology and 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

Warning: Using the opened-end cap eliminates the spark arrestor capability and increases noise. Use only for closed-course competition where permitted.