• Pacbrake's PRXB exhaust brake delivers the strongest braking horsepower, greatest speed reductions & shortest stopping distances possible without the use of service brakes.
• Providing 50 percent more braking power at lower RPM's, PRXB gives you the best holdback in the 1400-1800 RPM range (where you typically drive).
  
• The spring controlled pressure regulated mechanism on the exhaust brakes protects against engine overpressure.
  
• The brakes use industry exclusive Arcor nitride coating on housing and components which increases resistance to wear and corrosion.
  
• Severe duty & military approved

Get the highest braking power to lowest price ratio available on the market with PRXB Exhaust Brakes by Pacbrake. 

We are proud suppliers of exhaust brake systems for use in the US Army’s fleet of Stryker Wheeled Vehicles designed and built by General Dynamics Land Systems. 

Check out Pacbrake's InLine Mount 5-inch PRXB Exhaust Brake Kit for Dodge RAM 2003-2007 Cummins 5.9L ISB 24 Valve Engine w/ Standard Transmission and Dodge RAM 2006-2007 Cummins 5.9L ISB 24 Valve Engine w/ 48RE Automatic Transmission.

• PRXB gives you the best holdback in the 1400-1800 RPM range.
  
• The spring controlled pressure regulated mechanism on the exhaust brakes protects against engine overpressure.
  
• When the brake is deactivated, exhaust flow is unrestricted and won't interfere with power output.
  
• Patented 90 degree Non-contacting Butterfly Valve is specially engineered to maximise backpressure while preventing seizing.
  
• The brakes use industry exclusive Arcor nitride coating on housing and components.

Every PRXB Automotive Kit comes with everything required for installation:

• PRXB Exhaust Brake, Controller (when required for application)
• Pacbrake Onboard Air Kit.
• Pacbrake's InLine Mount 5 inch PRXB Exhaust Brake.
• Air Actuated-Comes with Air Tank, Hose and Accessories.

Vehicle Application:

• 2003 - 2007 Dodge RAM Cummins 5.9L ISB 24 Valve Engine w/ Standard Transmission & Dodge RAM 2006 - 2007 Cummins 5.9L ISB 24 Valve Engine w/ 48RE Automatic Transmission