Upgrade your 4.0 TFSI V8 engine with the Endura Motorsport High-Pressure fuel pump Kit based on HITACHI – the ideal choice for anyone seeking maximum performance and reliability from their 4.0 TFSI engine. Specially developed for the Audi RS6 C7, RS7 C7, S6 C7, S7 C7, S8 D4 and A8 D4. The original pumps have been modified with a larger piston to deliver up to 50% higher fuel flow and increased fuel pressure compared to standard – a must for anyone with a tuned 4.0 TFSI engine.
Based on two original HITACHI OEM pumps and fitted with an enlarged 11.6 mm piston with DLC coating, the set delivers significantly higher fuel pressure and flow – essential for Stage 2+, Stage 3 or E85 tuning projects. Installation is fully plug-and-play using the original OEM housing, making it one of the most effective upgrades for the 4.0 TFSI platform.
Benefits
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Complete set of 2 HFPs
– ready for immediate installation, no modification required
-
Up to 50% higher fuel flow
compared to OEM
- Increased fuel pressure thanks to a larger piston (from 10.0 mm to 11.6 mm)
-
Reliably tested up to 300+ bar
and 8,500 RPM
-
OEM-based
– original HITACHI pumps with upgraded Endura Motorsport internals
-
DLC coating
reduces wear, friction and corrosion for a longer service life
-
Compatible with E85 and racing fuel
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Plug-and-play installation
– no modifications to the housing required
-
Ideal for hybrid turbos and aggressive tuning set-ups
Technical specifications
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Standard piston diameter:
10.0 mm
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Internals:
Endura Motorsport (matched piston + cylinder)
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Coating:
DLC (Diamond-Like Carbon) – reduces wear, friction and corrosion
-
Maximum operating pressure:
tested to 300+ bar
-
Tested up to:
8,500 RPM
-
Fuel flow:
up to 50% higher than OEM
-
Installation:
plug & play, fully pre-assembled OEM-based HPFP kit
-
Warranty:
12 months
Compatibility
This high-pressure fuel pump kit is suitable for the following 4.0 TFSI engines:
Not suitable for: engines outside the 4.0 TFSI platform or standard vehicles without tuning.
Please note
-
ECU tuning is mandatory
after installation – without the appropriate software, the additional capacity will not be utilised.
- For maximum performance, particularly when using E85, an upgrade of the entire fuel system is recommended.
- Installation requires experience – fitting by a specialist is recommended.
Contents
-
2x Fully upgraded high-pressure fuel pump (HPFP)
– built with Endura Motorsport internals on an original Hitachi base
- Installation instructions
Frequently Asked Questions
Do I need a tune?
Yes, the ECU software must be remapped after fitting. Without a correct tune, the extra capacity will not be utilised and the engine may not function correctly.
What is the difference in piston diameter?
The standard OEM piston has a diameter of 10.0 mm. The Endura upgrade piston measures 11.6 mm, which provides significantly higher fuel pressure and up to 50% more flow.
Does this kit fit all 4.0 TFSI models?
Yes, the kit is suitable for all the above-mentioned 4.0 TFSI and 5.0 TFSI models within the specified model year range.
Why choose a complete HPFP kit rather than an internals kit?
Faster installation, less risk of errors and immediate, consistent performance – without having to carry out the conversion yourself.
Is this suitable for E85?
Yes, the HPFP kit supports the higher fuel demand of ethanol set-ups.
Why two pumps?
The 4.0 TFSI V8 engine is fitted as standard with two high-pressure fuel pumps. To ensure a complete upgrade and consistent fuel pressure, it is necessary to replace both pumps.
