1440cc FIC Subaru WRX('02-'14)/STi ('07+) Fuel Injector Clinic Injector Set (High-Z) (is175-1440h)

Fuel Injector Clinic 1440cc Injector Set — Subaru WRX / STI (is175-1440h)

A 1440cc high-impedance saturated ball-and-seat set in Subaru top-feed fitment, sized for boosted WRX and STI builds running E85 or high-boost gasoline. High-Z means they run directly on a saturated driver — no resistor box, no driver module, no additional hardware to mount.

Every set is precisely matched using Fuel Injector Clinic's proprietary Data Match Technology. Each injector is individually serial numbered and the results come on a Data Match Sheet — the most complete flow matching and latency information available. Injectors are flow tested and rated at 43.5 psi (3 bar) at 90°F fuel temperature using CF-16B calibration fluid.

Superior short pulse width control and state-of-the-art matching make these easy to tune and give great drivability, so an engine fueled for serious power still idles and cruises properly. Great for E85 applications.

Fitment: 02-14 Subaru WRX, 07-21 Subaru STI.

Roughly 750-800 hp capable on gasoline, closer to 500-550 on E85 at a sane duty cycle. If the car is running pump gas at moderate boost, the 1000cc set is the better match — oversizing costs idle quality with nothing gained.

Sold as a set of 4. Includes all O-rings needed for the factory application and the Data Match Sheet. Covered by Fuel Injector Clinic's lifetime warranty against manufacturing defects.