VIS Motorsport HPFP Upgrade – High-Pressure Fuel Pump Internals

+20% piston area · 150+ bar fuel pressure · up to +10 bar rail pressure without a software tune

Overview

The VIS Motorsport HPFP (High Pressure Fuel Pump) upgrade increases your TFSI/TSI pump’s capacity with a +20% larger piston area than OEM. Engineered for big-turbo applications, it delivers a stable 150+ bar and gives stock engines a noticeable rail-pressure gain and extra horsepower – without a software update.

Features & Benefits

• +20% piston area vs. OEM · 150+ bar achievable rail pressure
• Up to +10 bar rail pressure & extra HP even on stock setups
• Piston head optimized for ideal fuel flow direction
• Piston surface hardened & dual heat-treated
• Laser marked for traceability & anti-counterfeit protection
• 12-month warranty

Precision & Manufacturing

• Top clearance (piston): 0.001–0.00015 mm
• Deviation of circularity: ≤ 0.001 mm
• Hardness before rectification: 370–450 HB
• Nitrided case depth: 0.15–0.25 mm
• Hardness after nitriding: HV10 760–860 kgf/mm²
• Material: 34MoCr11 STAS 791-1988 (special aged steel)

These ultra-tight tolerances and surface finishes ensure sealing integrity, wear resistance, and stable pressures under extreme loads.

Critical Startup Warning

After every HPFP installation do not start the engine immediately! Open and keep the driver’s door open or switch ignition on until the in-tank lift pump has primed the high-pressure pump (you can hear it). Only then start the engine – otherwise the HPFP may be damaged instantly.

Compatibility

Fits among others:

• Audi TT RS 2.5L 8J (2009–2012)
• Audi RS3 Sportback 2.5L 8P (2011–2012)
• Audi S4 B8.5 3.0 TFSI / SQ5 / Q7 3.0 TFSI / A6 / A7 / A8 3.0 TFSI (up to 2015)
• VW Touareg 3.0 TSI
• Audi S5 B8.5 3.0 TFSI
• Audi A4 / A5 / A6 / Q5 / TT 2.0 TFSI (2009–2014)
• With 2 kits: Audi R8 V10, RS6 V10 & Lamborghini Gallardo V10 (LP-560 / LP-570)