CTS Turbo Stage 3.5 Hellcat Fuel Pump Upgrade Kit for VW/Audi MQB Models (EA888.3)

We are proud to release the new our CTS Turbo Stage 3.5 Fuel Pump Kit for MQB GTI, MK7 Golf R.  As you may already know the TFSI fueling system has two separate fuel pumps, the LPFP (Low-Pressure Fuel Pump) and HPFP (High-Pressure Fuel Pump).  While there are a number of options for HPFP available, including the Autotech HPFP, there are limited options for fortifying the low-pressure fuel system.  CTS has developed a fully integrated fueling system, which utilizes a Walbro 525LPH E85 compatible in-tank fuel pump that is capable of supporting in excess of 600HP.  If you're looking for a fuel pump system to support all the power that your engine can handle look no further than the CTS Turbo Stage 3.5 Fuel Pump Kit for MQB GTI, Golf R, 8V Audi A3/S3. NB: please keep in mind that some modifications to your fuel pump basket is required. Some baskets differ from each other so installation should be performed by an experienced technician. Torqbyte Controller is an optional add-on and strongly recommended. Software tuning is required. Product Details: - Genuine Walbro High Output in-tank 525LPH HELLCAT E85 compatible Fuel Pump - Genuine Walbro Filter sock (may not fit all revision fuel pump baskets) - CTS CNC machined/black hard anodized pump adapter - CTS CNC machined/black fuel pump spacers - CTS CNC machined/black fuel pump venturi standoff - Viton O-ring - Nylon wire crimps - Drill bits - Stainless steel fasteners Installation guide 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

The following VW fuel pumps are compatible: 5Q0919051BK, 5Q0919051BM

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 8 applications

GOLF R

Make	Model	Engine	Years
VW	GOLF R		2015–2019
VW	GOLF R (MK7/7.5)		2015–2019

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

A3

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

Fitment data last updated: 2026-06-29