Fuel Injector Clinic 1650cc High Impedance Injector Set (IS261-1650H) - 2017 - 2026 Audi RS3 / 2017 - 2023 Audi TT RS
The Fuel Injector Clinic IS261-1650H 1650cc High Impedance Injector Set is engineered for high-horsepower 2017-2026 Audi RS3 and 2017-2023 Audi TT RS builds that demand exceptional fuel delivery without compromising idle quality or everyday drivability. This complete set of five 1650cc High Impedance Ball and Seat injectors is designed to fit the factory fuel rail while utilizing Fuel Injector Clinic's latest injector technology to deliver outstanding linearity, superior short pulse width repeatability, and precise fuel control throughout the entire RPM range.
The 1650cc injector is Fuel Injector Clinic's largest high impedance injector compatible with all race fuels, making it an outstanding choice for serious street, drag racing, and road racing applications. It provides enough fuel to support aggressive horsepower goals on both gasoline and E85 while retaining excellent idle quality and street manners. Constructed with a stainless alloy valve, these injectors are compatible with pump gasoline, E85, VP Q16, VP Import, FTW, and other MTBE oxygenated race fuels.
The kit includes PGTJETQ5 injector pigtails for installation. Customers who prefer not to modify the factory wiring harness can choose optional PADPJtoD5 Plug and Play adaptor harnesses, available separately. Every injector set is individually matched using Fuel Injector Clinic's proprietary Data Match Technology. Each injector is individually serial numbered and supplied with a comprehensive Data Match Sheet containing 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.
Features
- Complete set of five 1650cc 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
- Largest Fuel Injector Clinic high impedance injector compatible with all race fuels
- Excellent idle quality and street drivability
- Supports high-horsepower gasoline and E85 combinations
- Compatible with pump gasoline, E85, VP Q16, VP Import, FTW, and other MTBE oxygenated race fuels
- Stainless alloy valve construction
- Latest Fuel Injector Clinic injector technology
- Excellent injector linearity
- Superior short pulse width repeatability
- Includes PGTJETQ5 injector pigtails
- Optional PADPJtoD5 Plug and Play adaptor harnesses available separately
- Fuel Injector Clinic proprietary Data Match Technology
- Each injector individually serial numbered
- Includes comprehensive Data Match Sheet with flow and latency information
- 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: IS261-1650H
- Application: 2017-2026 Audi RS3 / 2017-2023 Audi TT RS
- Injector Quantity: 5
- Flow Rate: 1650cc/min
- Injector Type: High Impedance Ball and Seat
- Fuel Rail Compatibility: OEM fuel rail
- Included Wiring: PGTJETQ5 injector pigtails
- Optional Plug and Play Adaptors: PADPJtoD5
- Fuel Compatibility: Pump gasoline, E85, VP Q16, VP Import, FTW, and other MTBE oxygenated race fuels
- Valve Material: Stainless alloy
- Flow Matching: Fuel Injector Clinic Data Match Technology
- Flow Test Pressure: 43.5 PSI (3 Bar)
- Flow Test Temperature: 90 degrees Fahrenheit
- Included: Five injectors, factory application O-rings, PGTJETQ5 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
What fuels are these injectors compatible with?
The stainless alloy valve construction allows the IS261-1650H to be used with pump gasoline, E85, VP Q16, VP Import, FTW, and other MTBE oxygenated race fuels, making it Fuel Injector Clinic's largest high impedance injector compatible with all race fuels.
Do these injectors require wiring modifications?
Yes. The kit includes PGTJETQ5 injector pigtails for wiring conversion. Optional PADPJtoD5 Plug and Play adaptor harnesses are available separately if you prefer not to modify the factory wiring harness.
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 high-horsepower street car or an all-out race-ready Audi RS3 or Audi TT RS, our knowledgeable team can help you choose the ideal injectors and supporting fuel system components for your combination.
Phone: 1-855-827-7223
Email: sales@beefcakeracing.com
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