Fuel Injector Clinic 2150cc High Impedance Injector Set (IS261-2150H) - 2017 - 2026 Audi RS3 / 2017 - 2023 Audi TT RS
The Fuel Injector Clinic IS261-2150H 2150cc High Impedance Injector Set is built for extreme horsepower 2017-2026 Audi RS3 and 2017-2023 Audi TT RS applications where massive fuel delivery is required without sacrificing low-speed drivability. This complete set of five 2150cc High Impedance Ball and Seat injectors is designed to fit the factory fuel rail and incorporates Fuel Injector Clinic's latest injector technology to provide exceptional linearity, superior short pulse width repeatability, and excellent throttle response despite the injector's enormous flow capacity.
The IS261-2150H is in a class of its own for high-output street and race vehicles. Fuel Injector Clinic utilizes its proprietary Data Match Technology dynamic flow matching process to significantly improve ECU control in the critical sub-2 millisecond pulse width range commonly encountered during idle and part-throttle operation. The result is exceptional drivability from an injector capable of supporting the most demanding turbocharged engine combinations.
The kit includes PGTUSC5 injector pigtails for installation. Customers who prefer not to modify the factory wiring harness can choose optional PADPUtoD5 Plug and Play adaptor harnesses, available separately. Each injector is individually serial numbered and includes a comprehensive Data Match Sheet with detailed flow and latency information. Fuel Injector Clinic flow tests every injector at 43.5 PSI (3 Bar) and 90 degrees Fahrenheit using calibration fluid. All required factory application O-rings are included, and every injector is backed by Fuel Injector Clinic's lifetime warranty against defects in original manufacture.
Important Fuel Compatibility Notice: The internal construction of the 2150cc injector contains a seal that can swell when exposed to MTBE oxygenated fuels such as VP Q16 or VP Import. This can significantly reduce injector flow, making these injectors unsuitable for use with MTBE oxygenated fuels. Additionally, prolonged storage after exposure to alcohol-based fuels such as E85 may lead to corrosion if proper care procedures are not followed.
Features
- Complete set of five 2150cc high impedance fuel injectors
- Designed for 2017-2026 Audi RS3 and 2017-2023 Audi TT RS
- Fits the factory OEM fuel rail
- High Impedance Ball and Seat injector design
- Exceptional low-speed drivability for an ultra-high-flow injector
- Excellent throttle response and short pulse width control
- Fuel Injector Clinic proprietary Data Match Technology
- Dynamic flow matching improves ECU control below 2 millisecond pulse widths
- Each injector individually serial numbered
- Includes comprehensive Data Match Sheet with flow and latency information
- Includes PGTUSC5 injector pigtails
- Optional PADPUtoD5 Plug and Play adaptor harnesses available separately
- Flow tested at 43.5 PSI (3 Bar)
- Flow tested at 90 degrees Fahrenheit using calibration fluid
- Includes all required factory application O-rings
- Lifetime warranty against manufacturing defects
Quick Specs
- Manufacturer: Fuel Injector Clinic
- Manufacturer Part Number: IS261-2150H
- Application: 2017-2026 Audi RS3 / 2017-2023 Audi TT RS
- Injector Quantity: 5
- Flow Rate: 2150cc/min
- Injector Type: High Impedance Ball and Seat
- Fuel Rail Compatibility: OEM fuel rail
- Included Wiring: PGTUSC5 injector pigtails
- Optional Plug and Play Adaptors: PADPUtoD5
- Flow Matching: Fuel Injector Clinic Data Match Technology
- Flow Test Pressure: 43.5 PSI (3 Bar)
- Flow Test Temperature: 90 degrees Fahrenheit
- MTBE Fuel Compatibility: Not compatible with VP Q16, VP Import, or other MTBE oxygenated fuels
- Included: Five injectors, factory application O-rings, PGTUSC5 pigtails, and Data Match Sheet
- Warranty: Lifetime Manufacturer Warranty
Fitment
Audi RS3
- 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
Audi TT RS
- 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
Can these injectors be used with VP Q16 or VP Import fuel?
No. Fuel Injector Clinic specifically states that the IS261-2150H is not compatible with MTBE oxygenated fuels such as VP Q16, VP Import, or similar fuels because the internal seal can swell and reduce injector flow.
Why does this injector idle so well despite its large size?
Fuel Injector Clinic uses proprietary Data Match Technology dynamic flow matching to improve ECU control in the sub-2 millisecond pulse width range, providing excellent idle quality, part-throttle drivability, and throttle response for a 2150cc injector.
Why Buy from Beefcake Racing?
Beefcake Racing proudly supplies genuine Fuel Injector Clinic fuel system components backed by expert technical support. Whether you're building a record-setting Audi RS3 or Audi TT RS, our experienced team can help you select the correct injectors and supporting fuel system components for your horsepower goals.
Phone: 1-855-827-7223
Email: sales@beefcakeracing.com
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

