BD Diesel Exhaust Brake - Universal 4.0in c/w Air Compressor

Provides up to 150 retarding horsepower throughout the engine's RPM range, BD's exclusive Variable Orifice Technology, Adjustable pressure regulation, Pneumatic spring loaded cylinder, BD's solid, offset butterfly, 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, IP67 sealed air compressor included, All mounting hardware provided, 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.