BD Diesel Variable Vane Exhaust Brake for 2004.5+ Duramax Engines 130 HP Retard

BD Diesel Variable Vane Exhaust Brake — engineered for 2004.5+ Duramax engines to deliver up to 130 HP of retarding power . Harness the factory variable-vane turbo design to reduce turbo lag while adding powerful, reliable exhaust braking for safer towing and downhill control. Key Benefits Up to 130 HP retard — closes turbo vanes to create exhaust back pressure and resist piston travel, slowing the vehicle without overusing service brakes. Smoother, safer descents — maintain speed on long grades, curves and heavy loads with improved vehicle control. Tow/Haul integration — enable the VVB in Tow/Haul mode to activate braking whenever throttle is released. Three braking modes — automatic, moderate and aggressive settings; includes Allison downshift programs and works in manual selections. Cruise control integration — automatically accelerates and decelerates to maintain set speed using the VVB. Simple installation — plugs into factory ports and mounts the rotary switch on your dash for fast, clean setup without cutting or major wiring. Why Choose BD Diesel Get one integrated solution that replaces multiple competing parts — less cost, less install time, and engineered durability. Ideal for owners who tow frequently or drive mountainous routes and want confident, consistent engine retarding straight from the factory turbo architecture.