Pacbrake's 4 inch PRXB High Performance Exhaust Brake Kit for GMC 2001-2005 6.6L Duramax 32 Valve Engine-Allison 1000 Series Automatic Transmission without optional 2nd alternator.
The brake kit provides 50 percent more braking power at lower RPM's.
In the 1400-1800 RPM range, PRXB gives the best holdback where you typically drive.
The mechanism on the exhaust brakes is spring controlled and pressure regulated to protect against engine overpressure.
When deactivated, exhaust flow remains unrestricted and does not interfere with power output.
The patented 90 degree Non-contacting Butterfly Valve is engineered to maximize backpressure while preventing seizing.
The brakes feature an industry exclusive Arcor nitride coating on housing and components, increasing resistance to wear and corrosion while strengthening the exhaust brake and adding lubricity.
Every PRXB Automotive Kit includes everything required for complete installation.
The kit contains the PRXB Exhaust Brake, Controller (when required for application), and Pacbrake Onboard Air Kit, which includes: HP325 Series Compressor, 0.5 Gal Air Tank, 25 Foot Coiled Air Hose, Air Accessories, and Fittings Kit.
Pacbrake's 4 inch PRXB High Performance Exhaust Brake Kit is designed for GMC 2001-2005 6.6L Duramax 32 Valve Engine-Allison 1000 Series Automatic Transmission without optional 2nd alternator.
The brake is air actuated and comes with an air tank, hose, and accessories.
Switch Pac: N/A.
Transmission Controller: N/A.
Details: Application: GMC 2001-2005 6.6L Duramax 32 Valve.
Size: 4.0 Inch.
Hose Length: 25 Foot.
Hose Type: Coiled.
Capacity: .5 Gallon.
Mount: In Line Mount.
Valve: 32 Valve.
Engine Manufacturer: Duramax.
Engine Years: 2001-2005.
Liters: 6.6 Liter.
