4040XL Performance Diesel Muffler

The Aero Turbine 4040XL is a performance diesel muffler designed with patented airfoil cone technology. This muffler is constructed from 100% 304 stainless steel and features a mirror-polished finish with fully welded construction. It is built with a non-restrictive internal resonator that reduces rasp and drone, providing a moderate exhaust tone.

The Aero Turbine XL muffler allows engines to breathe easier, increasing horsepower and torque while potentially improving fuel mileage. Its unique design rapidly expands and splits exhaust gas, creating a vacuum that muffles sound and increases flow for enhanced performance.