~(14 lbs. 16X10X6)~ Direct Mount 4 inch PRXB High Performance Exhaust Brake Only For Dodge RAM 03-04 Cummins 5.9L ISB 24 Valve W/Standard and 47RE / 48RE Automatic Transmission Upgrade Replaces Fixed Orifice Exhaust Brake Pacbrake

The Pacbrake C40110 is a high-performance, direct-mount 4-inch PRXB (Pressure Regulated Exhaust Brake) specifically engineered for 2003-2004 Dodge Ram trucks equipped with the 5.9L Cummins ISB 24-valve engine. This exhaust brake significantly enhances braking power, offering improved control and safety, particularly when towing heavy loads or navigating steep descents. It serves as a superior upgrade to fixed orifice exhaust brakes, providing a more consistent and robust braking performance. The PRXB design ensures a constant backpressure across the engine's RPM range, maximizing the braking effort. It is compatible with both standard and automatic (47RE/48RE) transmissions. The exhaust brake features a patented 90-degree non-contacting butterfly valve, designed for optimal backpressure and to prevent seizing. The housing and components are treated with an industry-exclusive Arcor nitride coating, which boosts wear and corrosion resistance, strengthens the unit, and adds lubricity.