Fuel Injector Clinic 660cc High Impedance Fuel Injector Set (IS261-0660H-SP) - 2017-2026 Audi RS3 / 2017-2023 Audi TT RS
Whether you're upgrading your Audi RS3 or TT RS for additional boost or building a reliable performance fuel system, the Fuel Injector Clinic IS261-0660H-SP Fuel Injector Set delivers the precision and consistency that tuners demand. This complete set of five 660cc-SP high impedance ball and seat injectors is engineered to fit the factory fuel rail while providing excellent fuel atomization, outstanding linearity, and superior short pulse width control for exceptional drivability and tuning accuracy.
Every injector is individually tested, flow matched, and serial numbered using Fuel Injector Clinic's exclusive Data Match Technology. Each set includes a detailed Data Match Sheet containing individual flow and latency values, giving tuners the information needed for accurate calibration and consistent cylinder-to-cylinder fueling. The injectors are supplied with all required O-rings for the factory application, include PGTUSC5 injector pigtails, and are backed by Fuel Injector Clinic's Lifetime Warranty against defects in original manufacture.
Quick Specs
- Manufacturer: Fuel Injector Clinic
- Part Number: IS261-0660H-SP
- Injector Size: 660cc-SP
- Quantity: Five injectors
- Injector Type: High Impedance Ball and Seat
- Fits: OEM fuel rail
- Included: PGTUSC5 injector pigtails
- Optional Adapter: PADPUtoD5 Plug and Play adapters
- Flow Rating: Rated at 43.5 PSI (3 Bar)
- Flow Test Temperature: 90 degrees Fahrenheit using calibration fluid
- Matching Method: Fuel Injector Clinic Data Match Technology
- Installation: Includes all required O-rings for the factory application
- Warranty: Lifetime Warranty against defects in original manufacture
Features
- Complete set of five 660cc-SP high impedance fuel injectors.
- Designed to fit the factory OEM fuel rail.
- High impedance ball and seat injector design.
- Excellent linearity across the operating range.
- Superior short pulse width repeatability for easier tuning.
- Matched using Fuel Injector Clinic's proprietary Data Match Technology.
- Each injector is individually serial numbered.
- Includes Data Match Sheet with individual flow and latency values.
- Flow tested at 43.5 PSI (3 Bar).
- Tested at 90 degrees Fahrenheit using calibration fluid.
- Provides excellent idle quality, throttle response, and drivability.
- Includes PGTUSC5 injector pigtails.
- Optional PADPUtoD5 Plug and Play adapters available separately.
- Includes all O-rings required for factory installation.
- Backed by Fuel Injector Clinic's Lifetime Warranty.
Fitment
- 2017 Audi RS3
- 2018 Audi RS3
- 2019 Audi RS3
- 2020 Audi RS3
- 2021 Audi RS3
- 2022 Audi RS3
- 2023 Audi RS3
- 2024 Audi RS3
- 2025 Audi RS3
- 2026 Audi RS3
- 2017 Audi TT RS
- 2018 Audi TT RS
- 2019 Audi TT RS
- 2020 Audi TT RS
- 2021 Audi TT RS
- 2022 Audi TT RS
- 2023 Audi TT RS
FAQs
Do these injectors fit the factory fuel rail?
Yes. The IS261-0660H-SP injector set is engineered to install on the OEM fuel rail for the listed Audi RS3 and Audi TT RS applications and includes all required O-rings for installation.
What is included with this injector set?
The kit includes five matched 660cc-SP high impedance injectors, PGTUSC5 injector pigtails, all required O-rings for the factory application, and a Data Match Sheet containing individual flow and latency information. Optional PADPUtoD5 Plug and Play adapters are available separately.
Why Buy from Beefcake Racing?
Beefcake Racing is your trusted source for genuine Fuel Injector Clinic performance fuel system components. Whether you're building a street-driven RS3 or a dedicated race car, our experienced team can help you select the right injectors for your combination. Contact us at sales@beefcakeracing.com or call 1-855-827-7223 for expert advice and outstanding customer service.
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