The phrase "active exhaust" is correct and usable in written English.
It is typically used in the context of automotive engineering to refer to a system that can adjust the exhaust flow for performance or sound enhancement.
Example: "The new sports car features an active exhaust system that enhances engine sound during acceleration."
Alternatives: "dynamic exhaust" or "variable exhaust".
The two more powerful models get an Active Exhaust system that uses electronically controlled bypass valves in order to enhance engine sounds; Active Exhaust is also available as an option on the entry-level model.
The engine is crisper and punchier, and the switchable "active exhaust" releases yet more fluffs and crackles with each gear change.
As a concept, active exhaust systems have been entertaining drivers back to the Model T era, when accessory catalogs bulged with ads for "cut out" valves.
This duality is how Dr. Dunne describes Jaguar's S versions of the new F-Type sports car, which, along with the Chevrolet Corvette Stingray offer active exhaust systems.
Which is too bad, because on the 458, "race" sets the active exhaust to its most vocal setting, and you want to hear the FF's song as often as possible.
An active exhaust system opens its pipes when you really prod the gas pedal, and the V-8's siren song could lure even a tone-deaf sailor to his doom.
Most young children are very active and exhaust their parents, and few concentrate on their schoolwork as much as their parents wish.
We have shown that these ionically dispersed catalysts are catalytically more active towards exhaust emission reactions like CO oxidation.
Short training intervention programs may decrease QoL by changing the elderly's daily routine and making it more active and exhausting.
This report introduces the SHS method and its advantages and discusses a number of its applications with environmental interest, such as highly active catalysts for exhaust emission control and methane conversion and various methods of neutralising or recycling industrial inorganic wastes.
His active mind has exhausted the entertainment value of his hospital room by mapping the cracks on the ceiling and profiling his nurses, whom he dubs the Midget and the Amazon.
