PRXB Exhaust Brake Kit – C44045 – DirectMount 4 Inch Exhaust (Air Actuated) Truck Brand:RAM Part Number: 503KINGCOBRA0308

Part Number: 503KINGCOBRA0308

220" of internal height while still allowing the use of the factory mounting hardware

Each kit comes with hardened parallel washers

Part Number: 138053000

Integrated exhaust brake control with included toggle switch

PRXB Exhaust Brake Kit – C44045 – DirectMount 4 Inch Exhaust (Air Actuated) Truck Brand:RAM Part Number: 503KINGCOBRA0308Product Description 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