Fuel Injector Clinic 1200cc Fuel Injector Set - High Z (is176-1200h) - 2004-2006 Subaru STI / 2005-2006 Legacy GT
Give your 2004-2006 Subaru STI or 2005-2006 Legacy GT the precise fuel delivery needed for a serious performance build with the Fuel Injector Clinic is176-1200h 1200cc High-Z fuel injector set. Previously offered as IS176-1100H, this updated four-injector set features saturated, high-impedance Ball & Seat injectors combined with Fuel Injector Clinic's proprietary Data Match Technology. The result is substantial fuel capacity backed by precise matching, excellent short pulse width control, and the drivability needed for a properly tuned street or performance Subaru.
Important fitment note: The is176-1200h injector set only fits the original tumblers when used with the FIC RL STi top-feed fuel rail conversion. Verify that your vehicle has the required FIC top-feed conversion before ordering.
Each injector is individually serial numbered and precisely matched using FIC Data Match Technology, with detailed flow and latency information supplied on the included Data Match Sheet. The injectors are flow tested and rated at 43.5 PSI (3 Bar) with fuel at 90 degrees F using CF-16B calibration fluid. The set includes PGTJETR4Q solder-in pigtails, or optional PADPJtoD4 plug-and-play adapters can be used to eliminate cutting and soldering of the factory harness.
Specifications
- Manufacturer: Fuel Injector Clinic
- Part Number: is176-1200h
- Previous Part Number: IS176-1100H
- Flow Rate: 1200cc/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: PGTJETR4Q
- Optional Plug-and-Play Adapters: PADPJtoD4
- O-Rings: Included as required for the listed application
- Warranty: Lifetime warranty against failure caused by defects in original manufacture
Features
- Complete set of four 1200cc/min performance fuel injectors
- Saturated, high-impedance Ball & Seat injector design
- Fuel Injector Clinic proprietary Data Match Technology
- Each injector is individually serial numbered
- Included Data Match Sheet provides detailed flow matching and latency information
- Superior short pulse width control supports precise low-load fueling
- State-of-the-art matching helps provide excellent tunability and drivability
- Flow tested and rated at 43.5 PSI (3 Bar)
- Testing performed with fuel at 90 degrees F using CF-16B calibration fluid
- Includes PGTJETR4Q solder-in pigtails
- Optional PADPJtoD4 adapters provide 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
- Previously sold under part number IS176-1100H
- Lifetime warranty against failure caused by defects in original manufacture
1200cc Performance With Precise Fuel Control
Increasing injector capacity is only useful when the ECU can accurately control the additional fuel. The is176-1200h combines 1200cc/min flow with excellent short pulse width control and precise injector matching, giving tuners the predictable behavior needed to build a clean calibration across the operating range.
That balance makes this set well suited to modified STI and Legacy GT combinations where additional fuel capacity is required without giving up the drivability expected from a street-driven performance car. Tight injector matching helps maintain consistent cylinder-to-cylinder fueling while the high-impedance design provides responsive control at idle, part throttle, and higher engine loads.
Fuel Injector Clinic Data Match Technology
Fuel Injector Clinic precisely matches the is176-1200h set using its proprietary Data Match Technology. Every injector is individually serial numbered, and the results are documented on the included Data Match Sheet with detailed flow matching and latency information. Providing accurate injector data gives the tuner a stronger foundation for calibration and helps take advantage of the injector's short pulse width capabilities.
FIC flow tests and rates these injectors at 43.5 PSI (3 Bar) with fuel at 90 degrees F using CF-16B calibration fluid. Combined with precise matching and tight manufacturing control, this testing helps provide the consistency required for predictable tuning and strong drivability.
Wiring and Installation
The is176-1200h requires an injector plug conversion. Fuel Injector Clinic includes PGTJETR4Q pigtails that can be soldered into the vehicle wiring harness to replace the existing injector connectors. For an installation that does not require cutting or soldering the factory harness, optional PADPJtoD4 plug-and-play adapters can be used instead.
Fuel Injector Clinic chooses brand-new, unused injectors for its performance applications rather than relying on remanufactured or core-program injectors. The injectors are supplied with the O-rings required for the listed application. If the vehicle uses additional aftermarket or nonstandard fuel-system components, injector fitment should be verified before ordering.
Fitment
- 2004 Subaru STI
- 2005 Subaru STI
- 2006 Subaru STI
- 2005 Subaru Legacy GT
- 2006 Subaru Legacy GT
FAQs
Is the Fuel Injector Clinic is176-1200h the replacement for the older IS176-1100H injector set?
Yes. Fuel Injector Clinic identifies the is176-1200h 1200cc injector set as the current version of the product previously sold as IS176-1100H.
Do the is176-1200h injectors require changes to the factory injector wiring?
Yes. PGTJETR4Q solder-in pigtails are included with the injector set. Optional PADPJtoD4 plug-and-play adapters can be purchased if you prefer 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 high-performance Subaru builds. Whether you are upgrading a street-driven STI or Legacy GT or building a more aggressive turbo combination, our team can help you select the right fueling components for your setup. Questions about Fuel Injector Clinic is176-1200h? Email sales@beefcakeracing.com or call 1-855-827-7223.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

