Revolution’s highly polished, lightweight mufflers provide less wind resistance and better performance and look good doing it. They?re also surprisingly quiet?perfect for sound-restricted flying fields.…
Features: -Solidly built to resist stress cracking-Included tuned pipes increase engine power-Easy to install bolt-on design Revolution’s highly polished, lightweight mufflers provide less wind resistance…
●Apply to 90 size helicopters, according to the strength character of 90 engine to design, features much increase the horsepower, fuel-saving, low noise, and the…
