Descending grades with trailers can be hazardous and tricky situations, resulting in over heated service and trailer brakes, that leads to brake fade, excessive wear, and costly unwarranted repairs. BD Engine brake has been the industries time proven VARIABLE REGULATING BACK-PRESSURE EXHAUST BRAKE.Controlled by a lighted On/Off toggle switch or optional stick-mounted rocker switch for manual transmissions, the BD brake communicates with the engines electronic idle verification board for quick engagement. Where it mounts: Most vehicle applications will either have BDs turbo-mount design which bolts in place of the factory elbow between the turbo and the exhaust system or the inline design mounts in the exhaust system between the engine and muffler/DPF/cat. The BD Brakes rugged cast-iron housing incorporates BDs exclusive AlumiBronze bushing and positive sealing piston ring, no blind holes for carbon and rust to form, and miles of leak free retarding. Brake valve is actuated by an air cylinder (newer models) or a powerful, three- in. vacuum cylinder (earlier models). The durable air compressor included in later model kits can even be used for other applications, such as air horns, air bags even air-ride fifth wheel hitches –it is that tough. Automatic-equipped trucks prior to 2006 require BDs programmable AutoLoc and PressureLoc kits to electronically control torque converter clutch engagement. This addition effectively reduces slippage, resulting in peak retarding performance as well as lower transmission temperatures. All BD Brake kits come complete with the brake, air compressor (where applicable), mounting hardware, port to monitor the brakes retarding performance, complete instructions and most models come with EGT port.. It has been almost 30 years since we started shipping our first exhaust brakes. With that many hill and mountain roads experienced, we used the knowledge gained to continue to deliver the best designed exhaust brake for your application. Incorporating BD's exclusive Variable Orifice Technology, BD's solid, offset butterfly, spring loaded cylinder and pressure regulation provides up to 150 retarding horsepower throughout the engine's RPM range - not just at high rpm like some designs that use holes or additional parts and claim it as a better idea. A range of rugged, cast-iron housings for Dodge, Ford, Chevy and motor home applications that incorporate BD's exclusive alumibronze bushing, piston ring-seals and stainless steel butterfly shaft has proven to stand-up under the harsh, high heat conditions of the exhaust environment. BD's butterfly valve and rotating shaft are made of stainless steel to resist corrosion. 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.. Exhaust Brake; 4in. Exhaust Size; Incl. Valve Assy/Tubing/Control Kit/Tubing Kit Duramax Exh Brake/Clamps/Duramax Compressor Pump Kit/Regulator And Pump Wiring Assy;. Proven to stand-up under the harsh, high heat conditions of the exhaust environment. Provides up to 150 retarding horsepower throughout the engine's RPM range. All mounting hardware are made of corrosion resistant stainless steel. BD Diesel Brake - 2004.5-2010 Duramax 6.6L LLY/LBZ/LMM w/4in Exhaust. Mounting Hardware Are Made of Corrosion Resistant Stainless Steel. Provides Up To 150 Retarding HP Throughout The Engines RPM Range. Its The Best!! Compare To The Competition And You Will See Why. Proven To Stand Up Under The Harsh High Heat Conditions. Exhaust Brake - 2001-2010 Duramax 6.6L w/4in Exh. BD's exclusive Variable Orifice Technology. Spring Loaded Cylinder Pressure Regulation. BDs Exclusive Variable Orifice Technology. EXHAUST BRAKE CHEVY 2001-10 DMAX 4IN. BD's exclusive alumibronze bushing. BDs Exclusive Alumibronze Bushing. 24 Months or 24000 Miles Warranty. Stainless Steel Butterfly Shaft. BD's solid, offset butterfly. BDs Solid Offset Butterfly. Rugged, cast-iron housings. Rugged Cast Iron Housings. Air compressor included. Spring loaded cylinder. Pressure regulation. Piston Rings Seals. Piston ring-seals. Exhaust Brake

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