Fueling

While the system is essentially plug-and-play with the included mounting hardware and wiring harnesses, the factory ECU is incapable of controlling the new setup without significant modification. APR's Calibration Experts spent months fully recalibrating the factory engine management system to operate with both MPI and GDI injectors. New sensors were added to the system to provide the ECU with accurate closed-loop control, rather than resorting to risky tricks or external controllers. The end result is simple. More fueling headroom and more power!

Additional Information

Fits Audi A3 17-19, A3 Quattro 15-20, Q3 21-24, S3 15-20, TT Quattro 15-23, TTS Quattro 16-23; Volkswagen Arteon 19-21, Golf R 15-19, GTI 15-21, Jetta 19-24

• 305 LPH High Flow In-Tank Fuel Pump: Upgrades the LPFP to the largest readily available pump compatible with the factory fuel basket, and PWM controller without additional controllers.
• 980 CC Bosch Motorsport MPI Injectors: Converts the factory injection system to a true, dual, MPI and GDI setup, with large enough injectors to support power levels well beyond APR Stage 3+ power levels for North American Vehicles.
• Cleaner Intake Valves: Performance-robbing buildup on the intake valves, a common byproduct of gasoline direct injected (GDI) engines, is greatly reduced through the cleaning effect associated with port injection.
• Ethanol Compatible Hardware: Fully Ethanol / E85 compatible injectors, fuel pump and associated hardware.
• More Fuel and More Power: Provides the required fueling to support APR Stage 3+ power levels.
• Mounting Hardware, Directions and Support: Includes step-by-step instructions and support to for a seamless install with the included plug-and-play wiring harnesses, sensors, mounting hardware, fuel rail, and more!
• Proper MPI/GDI Fuel Distribution: The fuel distribution block ensures fuel is properly delivered to the both sets of injectors on North American vehicles.

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Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information