Fuel Injector Clinic 650cc BlueMax Fuel Injector (High-Z) Subaru WRX 2002-2014 / STI 2007-2021

Part #: ficIS175 - 0650H. This set of 4x650cc saturated / high - impedance ball & seat fuel injectors from Fuel Injector Clinic is designed for Subaru WRX and STi ('07 & up), and also fits '04 - '06 STi with WRX tumbler conversion. Using the latest technology, these injectors offer excellent linearity and short pulse width repeatability. They come with pigtails PGT USC4, or you can opt for Plug & Play adaptors PADPUtoD4. The injector sets are precisely flow - matched within 1%. Each injector is individually numbered, and detailed flow results are provided. Tested at 43.5psi (3Bar) at 90°F fuel temperature with CF - 16B calibration fluid. Their superior short pulse width control and tight manufacturing tolerances make them easy to tune and provide great drivability. They include all necessary o - rings for the factory application. For aftermarket setups, contact us before ordering. Backed by a 12 - month warranty against manufacturing defects. These high - impedance injectors match the saturated injector signal of the vehicle's OEM ECU or are suitable for high - impedance aftermarket ECUs. You'll need to change the injector plug on your car's wiring harness, either by soldering in the included pigtails or using the optional plug - n - play adaptors. FIC uses brand - new injectors to reduce failure risks.

Using these fuel injectors is straightforward. First, if you're using the included pigtails, solder them onto your car's wiring harness to replace the current plugs. Or, you can choose the plug - n - play adaptors for an easier conversion. Once the plug conversion is done, install the injectors into your Subaru WRX or STI engine following the factory's guidelines. These injectors are designed to work well with the vehicle's OEM ECU or high - impedance aftermarket ECUs. When it comes to maintenance, it's a good idea to check the o - rings periodically for signs of wear or damage. If you notice any issues, replace them promptly. Also, make sure to keep the fuel system clean by using high - quality fuel. For aftermarket or non - standard setups, always contact the seller before ordering to ensure a proper fit. And remember, these injectors are covered by a 12 - month warranty against manufacturing defects, so if you experience any problems, reach out to the manufacturer.