APR Multi-Port Injection (MPI) System (EA888 Gen 3 & Gen 4)
Regular price
$1,499.95
Sale price
$1,348.95
APR Multi-Port Injection (MPI) System (EA888 Gen 3 & Gen 4)
Regular price
$1,499.95
Sale price
$1,348.95
APR Part Number: MS100229
Bosch Motorsport 980cc MPI injectors, fuel rail, harness & distribution block. Fits Audi A3/S3/TT/TTS/Q3, VW Golf R/GTI/Arteon/Jetta (EA888 Gen 3), and 2022-24 Mk8 Golf R & Audi S3 (EA888 Gen 4).
Overview
Real Stage 3+ power lives or dies on fuel delivery, and the APR Multi-Port Injection (MPI) System is the difference between a turbo that flows and an engine that starves. Built around four Bosch Motorsport EV14 980cc/min injectors, this system supplements the factory direct-injection fuel system with high-flow port injection, delivering the fuel volume needed to safely support Stage 3+ boost, E85, and M100 calibrations that the stock fuel system simply can't keep up with.
Every component is engineered to bolt in clean: an APR-matched Bosch Jetronic-to-OEM harness, OEM-style fuel rail and rail sensor, APR fuel distribution block, and all mounting hardware are included, so the system installs onto the factory intake manifold without any custom fabrication.
The MPI System is the hardware half of APR's Stage 3+ ecosystem, required alongside matching APR ECU/TCU software to unlock true Stage 3+ output. If you're already running APR Stage 3 software and looking to add the fueling capacity to go further, or building a custom Stage 3+ setup piece by piece, this is the component that makes it possible. Compatible across the EA888 Gen 3 (Audi 8V/8Y A3, S3, TT, TTS, Q3; VW Mk7/Mk7.5 Golf R, GTI, Arteon, Jetta) and EA888 Gen 4 (2022+ Mk8 Golf R, Audi S3) platforms.
Features:
- Motorsport-grade Bosch EV14 injectors deliver the fuel capacity real Stage 3+ power demands, 980cc/min each in a four-injector set (0280 158 040)
- E85 and M100 compatible for maximum power potential on high-octane and flex-fuel builds
- Supports up to 8 bar of fuel pressure for aggressive motorsport-level tunes
- Plug-and-play APR Bosch Jetronic-to-OEM harness, no splicing, no guesswork
- OEM-style fuel rail, rail sensor, and mounting hardware included for a clean, factory-fit install
- APR fuel distribution block included, everything needed to feed all four injectors from stock fuel lines
- 30° single cone spray angle, 0° bent/gamma angle, 24mm extended-tip nozzle, and 33.6mm compact body for precise atomization in tight quarters
- Top-feed design with 12 ohm coil resistance for reliable, OEM-level electrical compatibility
- Requires matching APR Stage 3+ ECU software to operate, the fueling backbone behind every Stage 3+ Golf R, S3, and TT/TTS build
Specifications
| Brand | APR |
|---|---|
| Category | Air and Fuel Delivery |
| Emission Code | 7 |
| Forced Induction Support | Yes |
| Fuel Injectors Included | Yes |
| Fuel Pump Included | No |
| Grade Type | Performance |
| Max Pressure | 8 Bar |
| MPI Injector CC | 980cc/min @ 3 bar |
| MPI Injector Count | 4 |
| Product Type | Fuelings Systems (Kit) |
| Self-Tuning | No |
| Sub Category | Fuel Injection System and Related Components |
| User-Tuneable | Yes |
| UPC | 810009933861 |
| Part Number | MS100229 |
Emissions
7
This part is legal under the provisions of EPA’s Tampering Policy dated November 23rd, 2020. The company has reasonable basis (test results) to verify that this product allows the vehicle to operate within legal emissions standards and is therefore legal to be sold for on-street use in all states that accept the legal provisions of the Clean Air Act and the EPA Tampering Policy. This product is NOT LEGAL FOR SALE OR USE IN THE STATE OF CALIFORNIA. Testing with the California Air Resources Board, in order to achieve 50-state compliance, is pending with CARB. Once testing is complete with California, and an E.O. number is issued, this product will be updated to 50-state legal status.
Tech Resources
Please Note: This system requires matching APR Stage 3+ ECU/TCU software and is designed for use only in conjunction with a compatible APR turbocharger system upgrade. It is not a standalone fueling solution and will not function correctly without the required software calibration.
Vehicle Applications
- 2021–2024 Audi Q3 (F3) — 2.0L; United States
- 2015–2015 Audi A3 — 2.0L; United States
- 2016–2020 Audi A3 (8V) — 2.0L; United States
- 2016–2023 Audi TTS (8S, FV) — 2.0L; United States
- 2017–2019 Audi A3 (8V) — 2.0L; United States
- 2015–2015 Audi S3 — 2.0L; United States
- 2016–2020 Audi S3 (8V) — 2.0L; United States
- 2022–2024 Audi S3 (8Y); Manufacturer market not specified
- 2015–2015 Audi TT — 2.0L; United States
- 2016–2023 Audi TT (8S, FV) — 2.0L; United States
- 2015–2015 Volkswagen Golf R — 2.0L; United States
- 2016–2019 Volkswagen Golf R (5G, MQB) — 2.0L; United States
- 2022–2024 Volkswagen Golf R (CD, MQB-EVO, Mk8); Manufacturer market not specified
- 2019–2021 Volkswagen Arteon (3H, MQB) — 2.0L; United States
- 2022–2023 Volkswagen Arteon (3H, MQB); Manufacturer market not specified
- 2015–2015 Volkswagen Golf GTI — 2.0L; United States
- 2016–2021 Volkswagen Golf GTI (5G, MQB) — 2.0L; United States
- 2019–2019 Volkswagen Jetta — 2.0L; United States
- 2021–2023 Volkswagen Jetta — 2.0L; United States
- 2020–2020 Volkswagen Jetta (A7, BU, MQB) — 2.0L; United States
Fitment Requirements
Please Note: This system requires matching APR Stage 3+ ECU/TCU software and is designed for use only in conjunction with a compatible APR turbocharger system upgrade. It is not a standalone fueling solution and will not function correctly without the required software calibration.
Requires matching APR Stage 3+ ECU/TCU calibration to function, this kit does not operate on stock or non-Stage-3+ software. Installs onto the factory intake manifold using the included OEM-style fuel rail, rail sensor, distribution block, and Bosch Jetronic-to-OEM harness; no factory fuel line splicing required. Professional installation recommended. Confirm software compatibility with an APR dealer before purchase.
Instructions - mqb_fueling_kit.pdf Please Note: This system requires matching APR Stage 3+ ECU/TCU software and is designed for use only in conjunction with a compatible APR turbocharger system upgrade. It is not a standalone fueling solution and will not function correctly without the required software calibration.