Our New GHF EZ 10s Hellcat Package is designed to get your cat into 10s. Package includes a GHF Catch can, Hellcat 3.09 Diff Upgrade, LMI intake. We have created an option with this package which comes with an upgraded pulley kit that allow the cat to make 1-2lbs of boost without having a custom tune. 2018+ models do not require a drive shaft upgrade. Price Includes Installation.