quick view Add to Cart Nitrous Express Nitrous Express Dodge Hellcat Supercharger Lid w/Integrated Nitrous Passages (Lid Only) - NX972 MSRP: $2,900.99 This Billet Supercharger Lid for Hellcat/Demon applications replaces the factory supercharger lid for a quick and clean install. The improved airflow design of the lid increases HP by itself and makes the blower "whine" more pronounced. Made from a solid... Add to Cart Add to Wish List Add to My Wish List Create New Wish List Compare