pacbrake.com VS.

procompusa.com

Provides 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.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 which increases resistance to wear and corrosion while strengthening the exhaust brake and adding lubricity.Air Actuated-Comes with Air Tank, Hose and Accessories.Optional Parts:ECM Bypass: Optional (Pacbrake Part Number C20135) for Dodge 2004.5 Cummins 5.9L 24 Valve Engine with Standard Transmission. ECM Bypass: Optional (Pacbrake Part Number C20141) for Dodge 2005 Cummins 5.9L 24 Valve Engine with Standard Transmission. ECM Bypass: N/A for Dodge 2006-2007 Cummins 5.9L 24 Valve Engine with Standard Transmission.Switch Pac: Optional (Pacbrake Part Number C18042) for Dodge 2004.5-2007 Cummins 5.9L 24 Valve Engine with Standard Transmission. Switch Pac: N/A for Dodge 2006-2007 Cummins 5.9L 24 Valve Engine with 48RE Automatic Transmission. Transmission Controller: N/A for Dodge 2006-2007 Cummins 5.9L 24 Valve Engine with 48RE Automatic Transmission.* - NOT FOR SALE IN CALIFORNIA - *