AUS Injection (C56010-550-4) 550cc High Performance Fuel Injector, (Set of 4) Set of 4 Direct Fit High Performance 550 cc/min at 43 PSI Racing Injectors Sold in Flow matched Sets High Flow High Performance Injectors Not Intended As A Direct OE Replacement Includes Plug And Play Harness Kit When Applicable. Includes Deatiled Flow Report