Exhaust Brake - Universal 4.0-Inch 1988 With our cover design

With our cover design

The TS Booster amplifies the signal between the throttle pedal and ECM to give a quicker reaction time and forces your performance curve to occur sooner

and over 1800hp with R900 12mm Stroker pumps

is also available with a high performance R900 stroker pump

Provides up to 150 retarding horsepower throughout the engine's RPM range

Exhaust Brake - Universal 4.0-Inch 1988 With our cover designIt 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