Roush P-51 Mustang

The Roush P-51 Mustang is 727 Horsepower Of Aircraft-Inspired Fury

What is the sound of 727 horses at full gallop? In Roush’s P-51 Mustang, the answer is up to you. While there are plenty of performance vehicles that have adjustable exhaust notes, not many can do so via a smartphone app. A couple years ago, Roush introduced an Active Exhaust program for iOS that does […]