General description 4PCS 550Cc Fuel Injectors designed for OBD1 and OBD2 engines, suitable for various B-Series, D-Series, and H-Series engines. These high resistance injectors can operate effectively even in low resistance setups. The injectors are made from a combination of plastic and metal, ensuring durability and performance. Technical specifications Number: M02H550 Flow rate: 550cc Material: Plastic + Metal Measurement allowed error: +/- 1-3cm Compatibility and accessories Compatible with OBD 0, OBD 1, B-Series, D-Series, and H-Series engines Must remove Part Number resistor box for installation Specific models include: - 1986-1991 GS 1.8L DOHC - B18A1 - 1992-1993 1.7L DOHC VTEC - B17A1 - 1992-1993 2.3L F23A1 VTEC SOHC - 1994-2001 1.8L DOHC VTEC - B18C1 - 1994-2001 1.8L DOHC VTEC - B18C5 - 1998-2002 Accord 2.3L F23A5 Value Package Models - 2001-2002 1.5L DX/LX SOHC - D15B7 - 1992-1995 1.6L EX/SI SOHC VTEC - D16Z6 - 1996-2000 1.6L D16Y5 - 1996-2000 1.6L DX LX D16Y7 - 1996-2000