The BD Diesel Exhaust Brake Variable Vane (2001030) is a performance-enhancing upgrade specifically designed for the 2007.5-2010 GM Duramax LMM diesel engines. This exhaust brake utilizes the factory variable geometry turbocharger (VGT) to create back pressure in the exhaust system, effectively slowing the vehicle without over-relying on the wheel brakes. By electronically controlling the turbo vanes, it delivers smooth and reliable braking performance, which is especially beneficial for towing and driving in hilly terrain. The system integrates seamlessly with the OEM setup, requiring no additional exhaust piping or cutting, and includes all necessary components for a straightforward installation. The BD Diesel Variable Vane Exhaust Brake is a trusted solution for Duramax owners seeking enhanced safety, reduced brake wear, and improved control during deceleration.