Exhaust Brakes GM
Maximized Duramax Braking Power!
BD manufactures Exhaust Brakes for the LB7, LLY and LBZ 6.6
liter Duramax diesel engines. Give your heavy-duty Chevy or GMC
the ability to navigate steep grades easily—without overtaxing
your truck’s braking system.
While it’s true that Allison-equipped applications are designed
to downshift once the Tow/Haul button is depressed, the engine
can easily over-rev and not slow you down—which is why the BD
Brake should be considered a necessity.
Like the other exhaust brakes in the BD Brake family, the BD
Brake for the Duramax uses BD’s exclusive Variable Orifice
Technology, which provides peak retarding power throughout the
engine’s rpm range—not just at high rpm like other brands. The
rugged, cast-iron housing incorporates BD’s exclusive
AlumiBronze bushing and piston ring-sealed, stainless steel
butterfly shaft that has proven to stand up under the harsh,
high-heat conditions of the exhaust environment.
Actuated by an on board air compressor and air cylinder, the BD
Brake applies factory-approved exhaust backpressure that is
self-regulating; once pressure reaches the factory
specification, the butterfly position changes to maintain the
highest pressure possible. And thanks to the large four-inch
casting, exhaust flow is not restricted when the butterfly valve
is in the open position. A lighted, dash-mounted toggle switch
activates the brake immediately, while flipping off the switch
or applying the service brakes causes the brake to release just
The BD Brake for the Duramax comes complete with all necessary
mounting hardware and complete instructions.
Please contact us for pricing and availability.