BD Diesel Exhaust Brake - Universal 4.0in c/w Air Compressor Ignition>Ignition Controllers requiring no cutting or drilling

requiring no cutting or drilling on OEM parts for hassle-free installation

After 58 years

rigid Mono-Drive hub

With pocketed spokes and an aggressive split-spoke design

Least restrictive air filter in its class

BD Diesel Exhaust Brake - Universal 4.0in c/w Air Compressor Ignition>Ignition Controllers requiring no cutting or drillingIt 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