Upgrade your 4.0 TFSI V8 engine with the Endura Motorsport High Pressure Fuel Pump Set based on HITACHI – the choice for those who want 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 D4The original pumps have been converted with a larger piston for a up to 50% higher fuel flow and increased fuel pressure compared to standard – a must for anyone with a tuned 4.0 TFSI engine.
Built on two original HITACHI OEM pumps and provided with an enlarged 11.6mm piston with DLC coating, the set delivers significantly more fuel pressure and flow – essential for Stage 2+, Stage 3 or E85 tuning projectsThe installation is complete plug & play based on the original OEM casing, making it one of the most effective upgrades for the 4.0 TFSI platform.
Advantages
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Complete set of 2 HPFPs – ready for immediate installation, no conversion required
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Up to 50% higher fuel throughput compared to OEM
- Increased fuel pressure thanks to larger piston (from 10.0 mm to 11.6 mm)
- Reliably tested up to 300+ bar and 8,500 RPM
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OEM basis – original HITACHI pumps with upgraded Endura Motorsport internals
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DLC coating reduces wear, friction, and corrosion for a longer service life
- Compatible with E85 and racing fuel
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Plug & play installation – no modifications to the housing needed
- Ideal for hybrid turbos and aggressive tuning setups
Technical specifications
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Standard piston diameter: 10.0 mm
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Piston diameter upgrade: 11.6 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
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Maximum workload: Tested at 300+ bar
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Tested to: 8,500 RPM
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Fuel flow: up to 50% higher compared to OEM
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Assembly: Plug & play, fully pre-assembled OEM-based HPFP set
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Warranty: 12 months
Compatibility
This high-pressure fuel pump set is suitable for the following 4.0 TFSI engines:
Not suitable for: engines outside the 4.0 TFSI platform or standard vehicles without tuning.
NB
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ECU tuning is mandatory after installation – without modified software, the extra capacity is not utilized.
- For maximum performance, especially at E85, an upgrade of the entire fuel system is recommended.
- Installation requires experience – Installation by a specialist is recommended.
Contents
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2x Fully upgraded high-pressure fuel pump (HPFP) – built with Endura Motorsport internals on the original Hitachi basis
Frequently Asked Questions
Do I need tuning?
Yes, the ECU software must be adjusted after installationWithout proper tuning, the extra capacity is not utilized and the motor may function incorrectly.
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 ensures significantly higher fuel pressure and up to 50% more throughput.
Does this set fit all 4.0 TFSI models?
Yes, the set is suitable for all the above-mentioned 4.0 TFSI and 5.0 TFSI models within the specified model year range.
Why a complete HPFP set instead of an internals kit?
Faster installation, lower risk of errors, and immediately consistent performance – without having to reconfigure it yourself.
Is this suitable for E85?
Yes, the HPFP set supports the higher fuel demand of ethanol setups.
Why two pumps?
The 4.0 TFSI V8 engine is equipped as standard with two high-pressure fuel pumpsFor a complete upgrade and consistent fuel pressure, replacing both pumps is necessary.
