Looking for a way to get better control of your truck and load on descents and curves? The BD 2001020 Variable Vane Exhaust Brake is just what you need. This exhaust brake helps maintain speeds and deliver up to 30-40psi of exhaust backpressure, giving you the braking power you need when you need it. Best of all, it easily plugs into your truck's existing factory ports. So don't wait, get the BD 2001020 Variable Vane Exhaust Brake today!