Aeromotive’s Phantom line of universal in-tank fuel systems goes green with the new Phantom Flex 450 stealth fuel system. As E85 makes its way into mainstream hot-rodding, its higher octane rating creates a cheaper fuel alternative for higher compression performance applications, but came with a few problems, namely its corrosive nature and stoichiometric ratio (fuel needed per unit of air). This is no match for the sealed electrical connections and 450 lph pump included with Phantom Flex, making Aeromotive’s latest addition true to its name.