Fuel Injector Clinic 2150cc BlueMAX Injectors are a Saturated / High Impedance Ball & Seat Injector. This injector is the largest high impedance injector ever by a long shot and offers great linearity as well as idle. It will work at elevated fuel pressure and with most E85 or other high volume fuels. (DO NOT USE WITH "Q" or OTHER OXYGENATED FUELS.).