Flow Force Injectors FF610 - Set of 2 Flow Matched 610cc EV14 Bosch Injectors with PNP Kit for Mazda RX-7 and RX-8 Cutting edge Bosch EV14 technology  the same injector powers the 662hp Shelby GT500 Flow matched within +/-0.5% static, and +/-1% dynamic flow rates for a smooth idle even on small engines Unaltered Bosch tip for better atomization than Injector Dynamics Works with multiple fuel types, including E85 All necessary adapters included for your RX-7 or RX-8  just install, tune, and drive! (aftermarket engine management, such as Megasquirt, required)