AmericanMuscle took delivery of our 2015 Ford Mustangs! We have over 7 different S550 Mustangs including GT, V6 and the all-new EcoBoost. We're going to be building these 2015 S550's and testing them out from stock form into race-proven, dyno-proven street machines. Check out our stock track results and stock dyno results before we start the transformation and try to build fast, powerful 2015's that put down big horsepower and torque numbers and hit the tracks, including the 1/4 mile, to prove what they can do! We'll be adding a ton of aftermarket 2015 Mustang parts and doing tests, installs and reviews right here at AmericanMuscle.com. less