While driving, the engine is pushed against a piston which moves up and down. Exhaust valves are opened and closed by the movement of this piston. However, if the piston doesn't move smoothly or if there's an irregularity in its motion, the exhaust valves could be damaged. An exhaust valve control system prevents damage by controlling the position of these valves to avoid damage when driving over rough roads or uneven terrain.
Exhaust valve control is a system used to maintain the correct air/fuel mixture in your engine. By regulating the exhaust valve, you are able to maintain a desired air-fuel ratio, preventing damage to your engine.
In most modern car engines, exhaust valve control is implemented through a computer system. This system monitors various parameters of the engine, such as air/fuel ratio and cranks angle, in order to maintain optimal performance. When abnormalities are detected, the computer will activate the exhaust valve to correct the situation.
Maintaining proper exhaust valve control is important for preventing engine damage. By controlling the air/fuel mixture, you are able to avoid high levels of heat and combustion byproducts that can damage your engine. Additionally, by maintaining a specific air-fuel ratio, you can optimize fuel economy and performance.
Along with the benefits of a finely tuned air/fuel ratio, more fuel control can mean better combustion and more power. Many Mustang enthusiasts consider an aftermarket exhaust system to be one of the most important upgrades they make to their storied Bonneville.
These systems come in a variety of styles and materials, but all revolve around the same premise: improving the performance, efficiency, and sound quality of your vehicle by adding extra horsepower without causing damage to your engine. Most systems are designed for long-term use and continuing reliability under heavy-duty conditions. Aftermarket exhaust systems have become such a common part of Mustang culture that if you see one on most cars you'll know immediately it was installed for something other than purely aesthetic reasons.