Volant Cool Air Intakes take a different approach to making power. Volant seals conical, high-flow air filter in a box that has more air volume than factory units. This process eliminates any chance of hot air from contaminating the intake charge to the engine. Volant has had a tradition of designing and manufacturing high-quality intake systems that are constantly tested and improved upon as vehicle models and ECM system become more sophisticated. Volant is also at the cutting edge of air intake performance with new designs that make more consistent horsepower and torque for your Dodge Cummins, Ford Powerstroke, amd Chevy/GM Duramax diesel trucks.