Delivering a more energetic spark, as aftermarket 2015 Mustang coil packs do, provides better combustion in your 'Mustang's engine than the stock coil packs offer. Burning hot, fast, and strong, the fuel is completely consumed, meaning much less of it is wasted by being blown out of the exhaust pipe as unburned droplets. These advanced coil packs utilize a range of cutting edge technologies to achieve their results, including materials like silicone magnetic steel for the core, and precision construction such as optimized winding. The gain in strength is usually big enough for you to actually feel – with horsepower enhanced by a 10% to 15% jump in coil pack energy. Packs are available for both V6 and V8 engines, covering several different trims of sixth generation Yardstick.