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PACBRAKE Exhaust Brake 1994-2002 Dodge 5.9L w/ 3" Exhaust w/ HX/HY35 Turbo

PACBRAKE Exhaust Brake
PRXB Max Flow
1994-2002 Dodge 5.9L
3" Exhaust w/ HX/HY35 Turbo

Sku # : PB-C4407
List Price :
Our Price :
Year/Trans Type
94-95 Adapter
98.5 ECM Bypass

Product Detail

This 4" PRXB Exhaust Brake is designed with a unique cast housing specifically for
1994-2002 Dodge Ram trucks (equipped with 5.9L Cummins diesel engines and HX/HY35 turbos).

Integrated with the patented PRXB design for the most braking horsepower at low engine RPM's, this brake is engineered to reduce the use of your service brakes while maximizing the exhaust flow.The 'maximum exhaust flow design' allows waste gate gases to escape the engine faster and spool the turbocharger faster to decrease turbo lag. In turn, this increases horsepower and torque while lowering EGTs (exhaust gas tempatures). The brake's 5 bolt flange bolts directly to the turbocharger outlet (Directmount™ design) eliminating the restrictive factory flange. Exhaust pipe adapters are available to fit factory and all larger aftermarket exhaust systems.

Diesel engines, unlike gasoline engines, don't slow down simply by taking your foot off the accelerator; they rely on service and supplemental brakes. An exhaust brake is a form of a supplemental brake, and they work much differently than their conventional counterparts.

Pacbrake’s flagship product, the PRXB (pressure regulated exhaust brake), is the unquestioned leader in the supplemental brake industry. The patented PRXB design delivers the strongest braking horsepower, greatest speed reductions and shortest stopping distances possible without the use of service brakes. It maintains optimum retarding performance by maximizing the exhaust backpressure throughout the entire RPM range. Unlike a typical exhaust brake, which requires high RPMs to work properly, the PRXB delivers constant exhaust pressure (braking) as early as 1200 RPM through to the maximum allowable RPM.

Controlled by a master ON/OFF switch, Pacbrake’s exhaust brakes provide whisper quiet supplemental braking that allows service brakes to be used much less, ultimately saving you money. They have the ability to be left on all the time, making it ideal for in-city driving or for steep, downhill grades. This product pays for itself as less wear on the brake pads means fewer brake jobs.


  • Trucks with Automatic Transmissions, The Kit Includes a Transmission Controller

  • Trucks with 4" Aftermarket Exhaust w/ a HX/HY35 Turbo Require PB-C11342

  • 1998.5 Year Trucks With Standard Transmissions Require an ECM Bypass PB-C14004

    Vehicles with an engine ECU (electronic control unit) experience a 2½ second delay when activating their exhaust brake circuit. Pacbrake’s ECM Bypass kit eliminates this delay with bypassing the computer system using a mechanical throttle switch mounted on the accelerator linkage.

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