The streets may be mean, but there will be nothing tougher or more breathtaking than your muscle car prowling them once you've added parts from the 2010-2014 street machine collection to your Mustang. This collection features topnotch components that turn any fifth-generation 'Stang into a true lord of the streets. Aftermarket exhaust increases scavenging, and thus horsepower and torque by lowering backpressure that reduces engine aspiration; it can also give you powerful-looking exhaust tips up to 4 inches in diameter and a fierce exhaust tone that makes your Pony sound like a street machine. Short-throw shifters cut shift distance by up to 40%, letting you accelerate hard and upshift fast. A good cold air intake gives your street Stang over 10 extra horsepower, and a custom tune with handheld tuner can tie all your upgrades together to jolt your Mustang with a heart-pounding 30 extra horsepower and ft-lbs of torque. The finishing touch from this collection is a gear set with a higher gear ratio that lets your 'Stang cut loose with all that extra power, leaving no doubt who rules the roads in your home city.