Alongside typical drum or disc brakes, beefier diesel engine vehicles sometimes employ exhaust brakes to bolster the stopping power of powerful haulers.

Not all braking systems on semis have to be loud to be effective. Exhaust brakes make a fraction of the noise that compression brakes do, here's how they work.

With the exhaust brake switch still in the on position, releasing the throttle reactivates the exhaust brake system.

A 4-inch exhaust adapter is needed to install the BD Diesel Performance Remote Mount Vacuum Exhaust Brake on our ’99 Dodge Ram 3500’s 3.5-inch custom exhaust.

Offered as part of Valtra’s 50kph package – which includes front suspension and air brakes – price for the exhaust-brake is £560.

Of these, brake dust is often the main contributor, but it’s not yet subject to regulation. There is much less known about the potential health effects of brake dust compared to diesel exhaust dust.