The industry's first changeable internal stinger for Ski-Doo allows for adjustments for high/low altitude or race application adjustments. Smaller stinger size will increase the pipe pressure and compensate for low pressure at high elevation. In race applications a smaller stinger will cause pipe to react much quicker and require less preheating of the pipe on a rev stand.
Pipe comes with 2" stinger designed for sea-level elevation. For mid to high altitudes, purchase one of these stingers
Gains 10-12 horsepower peak
Big mid-range to peak horsepower gains
Huge amount of R&D time to make the best pipe on the market
Fits into our BMP mufflers or the stock muffler
Easy bolt-on performance
Requires fuel controller and Performance Manifold for peak power