Engine braking cancellation for Nissan cars from 2016 to 2026 A simple explanation of how the system works: Engine Braking is a technique to slow down the vehicle using the internal forces of the engine instead of traditional brakes. It occurs when you lift your foot off the accelerator pedal, creating negative pressure in the intake manifold that slows the car. Some people want to cancel the system for a quieter and smoother ride at low speeds. Canceling the system does not cause any malfunctions or void the vehicle's warranty. Warranty on the service and restoration of the original system settings at any time. Price: 50 SAR