1650cc FIC BMW E46 M3, E9X, and Z4 M Fuel Injector Clinic Injector Set (High-Z)1650cc BMW E46 M3, E9X, and Z4 M FIC's Data Matched high performance fuel injectors featuring high impedance Bosch core, E85 compatible, with a lifetime warranty. Fuel Injector Clinic? s 1650cc min high impedance injector is the largest high impedance injector compatible with all race fuels and has excellent idle performance in street driven cars while still providing enough fuel to support higher horsepower output on both E85 and gasoline. The 1650cc