HELLION 2018+ FORD MUSTANG GT SLEEPER HIDDEN TWIN TURBO SYSTEM //HELLION 62/62B T4 TWIN TURBOS UPGRADE//Hellion S550 4-1 Header//6 inch race intercooler hellion $11,500.00 The next big thing is here! Recognizing the popularity of huge horsepower cars with the ultimate “sleeper” image, Hellion designed the most innovative twin-turbo system in history —... Add to Cart