FAS Supercharger Thermal Blanket

The F.A.S. Motorsports Supercharger Thermal Blanket is a high-temperature insulating wrap designed specifically for the Hellcat platform's 2.4L IHI supercharger, compatible with Hellcat, Trackhawk, Durango Hellcat, Demon, and Redeye models. Heat transfer from the supercharger into the incoming air charge is one of the most significant limiting factors on any supercharged vehicle — elevated inlet air temperatures directly reduce air density and power output. The FAS thermal blanket wraps around the supercharger body to act as a heat barrier, reducing radiant heat soak from the supercharger housing into the incoming charge air. By keeping the supercharger and surrounding intake temperatures lower, the blanket helps maintain cooler, denser intake air, which supports more consistent and reliable horsepower — especially during repeated pulls, spirited driving, or track sessions. The blanket is constructed from high-temperature insulating materials capable of withstanding the extreme underhood heat of a supercharged engine, and it's designed to fit cleanly around the factory supercharger without interfering with the throttle body, supercharger snout, or other components. Installation requires no permanent modifications and can be done in minutes. The FAS Thermal Blanket is an ideal addition to any Hellcat platform build, and it's especially valuable for vehicles running a smaller pulley, billet snout, or other performance modifications that generate additional heat under the hood.