Patented Multicore design for maximum power. Recommend for high horsepower applications.

Muffler Tubing Size: 4″

XR-1 Multi-Core Racing Muffler For Rotary Engine Equipped Vehicles – 4″ Center Inlet/ 4″ Center Outlet 6.25″ Round x 16″ Long Body 21″ Overall Length. Universal Part. Reversible Design.

• Universal muffler
• Reversible design
• Multicore internal flow tube construction
• Designed for Rotary Engine vehicles, but can be used on other applications