Air and Fuel› Fuel Injection Systems and Components - Electronic

Unitronic

MPI Fuel Rail Upgrade Kit

$649.99

SKU: UH018-FLA

Special Order
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Unitronic MPI Fuel Rail Upgrade Kit is designed to add port side fuel injection to factory MQB EA888.3 North American intake manifolds. This kit features a Unitronic CNC-machined billet aluminum fuel rail, a genuine Bosch motorsport fuel pressure sensor, and premium fuel lines. It includes a plug-and-play wiring harness, adapters, and hardware for a simple installation. Injectors are not included with this kit.
Show original supplier description
The Unitronic MPI Fuel Rail Upgrade Kit (UH018-FLA) provides a comprehensive solution for adding port-side fuel injection to MQB EA888.3 North American intake manifolds, designed to help you extract the most performance from your vehicle's existing setup. This kit is engineered to work with big turbo configurations on MK7 Golf, GTI, GLI, Golf R, and 8V A3 and S3 models. Key components include Unitronic's own CNC-machined billet aluminum fuel rail, constructed from 6061-T6 aluminum with a hard anodized black finish. The kit also incorporates a genuine Bosch Motorsport fuel pressure sensor and offers an optional genuine Continental Ethanol Content Sensor for those who need to monitor fuel composition. Premium fuel lines, pinch clamps, and all necessary hardware are included, ensuring a robust fuel delivery system. Installation is simplified through a complete plug-and-play wiring harness, eliminating the need for permanent modifications to your vehicle's factory wiring. Unitronic also provides a precision drill bit and guide for preparing the OEM intake manifold. While the kit is designed for straightforward installation, it carries a difficulty level rating of 5 out of 5, and an installation guide is available. It is important to note that MPI-specific tuning is not currently available from Unitronic for this kit. Related hardware, such as the MQB Spark Plug Set (NGK R7437-8) and a Unitronic MPI Fuel Rail Upgrade Kit for MQB EA888.3 (without injectors, which may refer to a different part number or configuration), are recommended for a complete setup.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandUnitronic
Part NumberUH018-FLA
CategoryAir and Fuel

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

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