When installing a Hellcat supercharger to a Chevy LS engine you have the choice of using the OEM Dodge throttle body or use a GM style unit. Some ECUs/throttle controllers will operate the Dodge throttle body and some won't. This adapter flange will mount your GM unit if that's the way you end up going. This flange is designed to accommodate up to a 102mm throttle body and still seal to the OEM Hellcat snout seal. Will still work with a larger throttle body with an alternative sealing method.
If you have a GM 4 bolt cable style throttle body please choose the "DBC" option.
