Quick view Advanced Fuel Dynamics Advance Fuel Dynamics ProFlex Commander Compare $899.99 The patented ProFlex™ Commander adaptive flex fuel system for Dodge Charger R/T, SRT and SRT8 allows you to start making more power and running cooler with E85. True plug and play flex-fuel for your 5.7L or 6.1L HEMI in about an... Add to Cart Add to Cart