Have you heard of Ford Mustang Active Performance Exhaust Audio Engineering? It's ingenious. What exactly is it, and what does it mean? It's a lot simpler than you think, but it's no less spectacular. Our team at New South Ford in Meridian, MS breaks it down for you.
Active Performance Exhaust Audio Engineering 101
Simply put, Active Performance Exhaust Audio Engineering results in tweaked engine exhaust valve behavior, limiting valve opening to minimize or maximize engine roar. You can control engine roar levels according to how you feel or where you are (say, leaving for work at the crack of dawn in your very quiet neighborhood). The performance exhaust modes include Normal, Sport, Track and Quiet Start. This feature is also now available on Ford Mustang EcoBoost.
What Causes Engine Exhaust Roar?
Engine exhaust roar is the result of high-pressure gas that enters the exhaust system after exhaust valves open wide. Alternating pulses of high- and low-pressure air moving at the speed of sound create noise. Active Performance Exhaust Audio Engineering controls engine roar, but it also changes engine roar harmonics, making the sound more like a racecar and less like a leaf blower.