Skip to product information
1 of 1

PACBRAKE

PRXB Exhaust Brake Kit – C44074 - DirectMount 4 Inch Exhaust (Air Actuated)

PRXB Exhaust Brake Kit – C44074 - DirectMount 4 Inch Exhaust (Air Actuated)

Regular price $1,658.10 CAD
Regular price Sale price $1,658.10 CAD
Sale Sold out
Shipping calculated at checkout.
  • If there is an applicable core charge, it will be included in this price and will be avail for a refund when approved after cores are returned and inspected. core charges can apply to injectors, turbos, injection pumps and possibly a few other parts. please contact if you have any questions.

Product 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 maximize backpressure while preventing seizing.

  • The brakes use industry exclusive Arcor nitride coating on housing and components which increases resistance to wear and corrosion.

Additional Parts:

  • Switch: (Optional) Part Number 18040 with 3 inch Stock Exhaust and Standard Transmission. 
  • ECM Bypass: Required for Dodge Ram 1998.5 ONLY  Part Number C14004;  to order call S&M Diesel.  With 3 inch Stock Exhaust and Standard Transmission

   * NOTE:  All 1994-2002 trucks using a DirectMount kit that have 4" aftermarket exhaust                         systems require an additional adapter – C11342
 ** NOTE:  For vehicle’s in which the factory HX / HY35 turbo charger has been changed                      to an aftermarket turbo charger, use only an inline kit. 
          A mounting group must also be purchased with the kit. Exhaust Size: 4" – C11400,                    3.5"  – C11420, 3" – C11440

Every PRXB Automotive Kit comes with everything required for a complete installation

View full details