CTS Turbo Multi-Port Injection Upgrade Kit 980cc for VW/Audi MQB Models (EA888.3)

This is the complete port injection (MPI) fueling kit for MQB vehicles. This is required to get the most out of your big-turbo MQB setup.  The kit allows the addition of port fuel injection on the factory North American intake manifold.  All the required hardware is provided and works seamlessly with factory ECU (MPI-specific software tuning is required).  CTS billet aluminum high-flow fuel rail was designed based on factory part for perfect installation and correct fuel pressure reading. NB: please keep in mind that modifications to your intake manifold and fueling system is required. Removal and modification of intake manifold; ECU wiring connections are required - installation should be performed by an experienced technician. Proper tuning software is required. Features:

• Proprietary billet aluminum high-flow fuel rail (hard anodized for E85 fuel)
• 980cc (up to 500hp) Bosch Motorsport fuel injectors (E85 compatible) - perfect for EA888.3 engines
• Installs like factory-designed MPI for maximum functionality
• OEM fuel pressure sensor
• Complete wiring harness for factory ECU integration
• Installation hardware included
• Eliminates the need to clean intake valves

Fitment for MK7/MK7.5 EA888.3 MQB vehicles:

• 2015 – 2021 VW Golf (incl Sportwagen and AllTrack)
• 2015 – 2021 VW GTI (incl Rabbit)
• 2015 – 2020 VW Golf R
• 2015 – 2021 Audi A3
• 2015 – 2021 Audi S3

INSTALLATION GUIDE

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 10 applications

S3

Make	Model	Engine	Years
AUDI	S3		2015–2020
AUDI	S3 (8V)		2015–2020

GTI

Make	Model	Engine	Years
VW	GTI		2015–2020
VW	GTI (MK7/7.5)		2015–2020

GOLF R

Make	Model	Engine	Years
VW	GOLF R		2015–2021
VW	GOLF R (MK7/7.5)		2015–2020

A3

Make	Model	Engine	Years
AUDI	A3		2015–2020
AUDI	A3 (8V)		2015–2020

TT

Make	Model	Engine	Years
AUDI	TT		2016–2021
AUDI	TT (8S)		2016–2021

Fitment data last updated: 2026-06-30