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BD - Exhaust Brake - 2001-2010 Duramax 6.6L with 4" Exhaust


2001 - 2010 Chevy GMC 6.6L LB7, LLY, LBZ and LMM Duramax with 4" Exhaust, Single Alternator.

Pricing: $1,499.95

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BD Exhaust Brake for 2001 - 2010 Chevy GMC 6.6L Duramax LB7 LLY LBZ or LMM with 4" Exhaust / Single Alternator

Part # 1024311

When you’re hauling heavy loads or towing, your stock brake rotors and pads can use all the help they can get. BD’s famous BD Brake exhaust brake will not only slow your rig more safely and predictably, it’ll save you thousands in maintenance costs over the life of the vehicle.

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 won’t slow the vehicle effectively. This is one of the many reasons a 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 safe back-pressure. 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 as quickly.

All kits come complete with all necessary mounting hardware and detailed instructions.

  • BD's exclusive Variable Orifice Technology
  • BD's solid, offset butterfly
  • Spring loaded cylinder
  • Pressure regulation
  • Provides up to 150 retarding horsepower throughout the engine's RPM range
  • Rugged, cast-iron housings
  • BD's exclusive alumibronze bushing
  • Piston ring-seals
  • Stainless steel butterfly shaft
  • Proven to stand-up under the harsh, high heat conditions of the exhaust environment
  • All mounting hardware are made of corrosion resistant stainless steel
  • An air compressor is included in most kits for newer pick-up trucks
  • There's a reason why the BD Brake is the most widely-recognized diesel exhaust brake in the industry: It's the best! Compare it to the competition, and you'll see why.


  • 24-Months
  • 24,000 Miles
  • 12-Months
  • 12,000 miles


Shipping Information

  • Item Requires Shipping
  • 26.3 lbs.
  • W9.8000” x H18.5000” x L7.8000”
  • Free Shipping!

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