Fuel Injector Clinic performance fuel injector set.Manufacturer Part Number: IS309-1440H & PGTUSC6VEHICLE / ENGINE COMPATIBILITY: Buick Regal T-Type / Grand National 3.8L TurboINJECTOR APPLICATION VERIFIED:FIC 1440cc injector set for Buick Regal T-Type / Grand National 3.8L Turbo Brand: Fuel Injector Clinic / FIC Flow Rate: 1440cc where specified in the part number Impedance: High-Z / High Impedance where indicated by the H suffix Fuel Injector Clinic injector sets are flow matched and include application-specific fitment components where applicable. Designed for gasoline and E85 performance applications. Please confirm injector size, connector type, fuel rail setup, and fitment before installation or tuning.