Exhaust Brakes will help your 1989-1993 Dodge 5.9L Diesel slowdown when it's critically for safety while also helping to reduce wear on your service brakes. Electronic exhaust brakes are available for late model pickups and function using the vanes in the factory-equipped VGT turbocharger. Mechanical style brakes use a butterfly valve that limits exhaust flow to create engine retarding horsepower that will slow the vehicle. Available for stock and aftermarket turbochargers, turbo-mounted and remote mount brakes will fit in a wide variety of applications. Pacbrake, Banks, and BD-Power are just some of the industry-leading companies you can find for your vehicle.