You're driving a loaded diesel rig down a mountain pass, foot hovering over the brake pedal, heart racing. How do you slow 20,000 pounds safely without cooking your brakes? Cue the exhaust brake -– ...

A car can weigh two tons, move at highway speed, and still stop on a dime—if the brake system stays healthy. That kind of power deserves respect. Yet repair shops across the country see the same ...