Fuel Injector Clinic 1000cc Fuel Injector Set - High Z (is175-1000h) - 2002-2014 Subaru WRX / 2007-2021 STI
Give your modified Subaru the fuel capacity and precise control it needs with the Fuel Injector Clinic is175-1000h 1000cc High-Z fuel injector set. Designed for 2002-2014 Subaru WRX and 2007-2021 STI applications, this four-injector set combines 1000cc/min flow capacity with saturated, high-impedance Ball & Seat construction, excellent linearity, and precise short pulse width control. Fuel Injector Clinic's proprietary Data Match Technology further improves consistency between injectors, giving tuners accurate injector data and a strong foundation for building a smooth, predictable calibration.
Important fitment note: The is175-1000h also fits 2004-2006 Subaru STI models when equipped with a WRX tumbler conversion. This requirement applies specifically to 2004-2006 STI applications and should be verified before ordering.
Each injector is individually serial numbered and matched using FIC Data Match Technology, with detailed flow matching and latency information supplied on the included Data Match Sheet. Fuel Injector Clinic flow tests and rates these injectors at 43.5 PSI (3 Bar) with fuel at 90 degrees F using CF-16B calibration fluid. PGTUSC4 solder-in pigtails are included, while optional PADPUtoD4 plug-and-play adapters provide an installation option that does not require cutting or soldering the factory injector wiring.
Specifications
- Manufacturer: Fuel Injector Clinic
- Part Number: is175-1000h
- Flow Rate: 1000cc/min
- Injector Quantity: 4
- Injector Type: Saturated / high impedance Ball & Seat
- Impedance: High-Z / high impedance
- Matching: Fuel Injector Clinic Data Match Technology
- Flow Test Pressure: 43.5 PSI (3 Bar)
- Flow Test Fuel Temperature: 90 degrees F
- Calibration Fluid: CF-16B
- Included Pigtails: PGTUSC4
- Optional Plug-and-Play Adapters: PADPUtoD4
- O-Rings: Included as required for the listed application
- 2004-2006 STI Requirement: WRX tumbler conversion
- Warranty: Lifetime warranty against failure caused by defects in original manufacture
Features
- Complete set of four 1000cc/min performance fuel injectors
- Saturated, high-impedance Ball & Seat injector construction
- Fuel Injector Clinic proprietary Data Match Technology
- Excellent linearity and short pulse width repeatability
- Superior short pulse width control for accurate low-load fueling
- Each injector is individually serial numbered
- Detailed Data Match Sheet included with flow matching and latency information
- Flow tested and rated at 43.5 PSI (3 Bar)
- Testing performed with fuel at 90 degrees F using CF-16B calibration fluid
- Includes PGTUSC4 solder-in injector pigtails
- Optional PADPUtoD4 adapters allow plug-and-play connection to the factory harness
- Includes O-rings required for the listed application
- Uses brand-new, unused injectors rather than remanufactured or core-program injectors
- Lifetime warranty against failure caused by defects in original manufacture
1000cc Performance Fueling for Modified WRX and STI Builds
The is175-1000h provides a substantial increase in fuel capacity for modified Subaru WRX and STI combinations while retaining the precise low-pulse-width behavior needed for good drivability. That balance makes these injectors well suited to performance builds where increased fuel delivery needs to be paired with predictable ECU control rather than simply adding injector size.
Fuel Injector Clinic's tight manufacturing tolerances and precise matching help the ECU accurately meter fuel across changing engine speeds and loads. For a properly tuned Subaru, that means the injector set can provide the additional fueling capability demanded under boost while maintaining controlled operation during idle, cruising, and part-throttle driving.
Fuel Injector Clinic Data Match Technology
Every is175-1000h injector set is precisely matched using Fuel Injector Clinic's proprietary Data Match Technology. Each injector is individually serial numbered, and its results are documented on the included Data Match Sheet with detailed flow matching and latency information. This gives your tuner valuable injector-specific data for developing an accurate ECU calibration.
Fuel Injector Clinic also flow tests and rates its injectors at 43.5 PSI (3 Bar) with fuel at 90 degrees F using CF-16B calibration fluid. Combined with superior short pulse width control and precise injector matching, this testing helps provide the predictable performance and drivability expected from a properly calibrated performance fuel system.
Wiring and Installation
The is175-1000h requires an injector plug conversion. PGTUSC4 solder-in pigtails are included and can be installed in place of the existing injector connectors on the vehicle wiring harness. For installers who prefer not to cut or solder the factory harness, optional PADPUtoD4 plug-and-play adapters can be purchased instead.
Fuel Injector Clinic uses brand-new, unused injectors for its performance applications rather than relying on remanufactured or core-program injectors. The injector set is configured with the O-rings required for the listed applications. Vehicles using aftermarket or unusual fuel-system configurations should have injector compatibility verified before ordering.
Fitment
- 2002 Subaru WRX
- 2003 Subaru WRX
- 2004 Subaru WRX
- 2005 Subaru WRX
- 2006 Subaru WRX
- 2007 Subaru WRX
- 2008 Subaru WRX
- 2009 Subaru WRX
- 2010 Subaru WRX
- 2011 Subaru WRX
- 2012 Subaru WRX
- 2013 Subaru WRX
- 2014 Subaru WRX
- 2007 Subaru STI
- 2008 Subaru STI
- 2009 Subaru STI
- 2010 Subaru STI
- 2011 Subaru STI
- 2012 Subaru STI
- 2013 Subaru STI
- 2014 Subaru STI
- 2015 Subaru STI
- 2016 Subaru STI
- 2017 Subaru STI
- 2018 Subaru STI
- 2019 Subaru STI
- 2020 Subaru STI
- 2021 Subaru STI
- 2004 Subaru STI with WRX tumbler conversion
- 2005 Subaru STI with WRX tumbler conversion
- 2006 Subaru STI with WRX tumbler conversion
FAQs
Will FIC is175-1000h injectors fit a 2004-2006 Subaru STI?
Yes, but 2004-2006 STI models require a WRX tumbler conversion for this injector set. The conversion should be confirmed before ordering.
Do the FIC is175-1000h injectors require wiring modifications?
Yes, when using the included PGTUSC4 pigtails, the original injector connectors must be replaced by soldering in the supplied pigtails. Optional PADPUtoD4 plug-and-play adapters can be purchased if you want to connect the injectors without cutting or soldering the factory harness.
Why Buy Fuel Injector Clinic Injectors From Beefcake Racing?
Beefcake Racing is your source for Fuel Injector Clinic injectors and supporting fuel-system components for performance Subaru builds. Whether you are upgrading a street-driven WRX or building a higher-output STI, our team can help you choose the right injectors and supporting components for your combination. Questions about Fuel Injector Clinic is175-1000h? Email sales@beefcakeracing.com or call 1-855-827-7223.
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