VAG EA839 HPFP fuel pump upgrade (S4, S5, RS5..)

034 Motorsport HPFP upgrade, EA839 2.9T / 3.0T Audi/Porsche

The 034Motorsport High-Pressure Fuel Pump Piston Upgrade Kit is engineered as a direct replacement piston for the stock high-pressure fuel pump in the 2.9T and 3.0T TFSI EA839 engines utilized in the B9/B9.5 Audi S4/S5/SQ5/RS5, C8 Audi A6/A7/S6/S7, and 4M.5 Audi Q7/Q8.

With the installation of the 034Motorsport High-Pressure Fuel Pump Piston Upgrade Kit, the factory fueling capacity is significantly expanded by up to 37% in 2.9T or 3.0T EA839 engines. This enhanced fuel flow enables the fuel system to fulfill the increased requirements for ethanol, race fuel, additional pump gasoline, and seamlessly pairs with a proper Stage1, 2, or 3 tuning!

• Up to 37% Flow Increase Over the Factory High-Pressure Fuel Pump
• Increased Piston Diameter: 11.67mm vs. Stock 10.00mm
• Raises the Factory Fueling Limits Present in 2.9T and 3.0T Engines
• Increased Flow to Meet the Demands of E85 Optimized Tunes and Turbo Upgrades
• Required for Most Stage 1+, 2+, and Stage 3 Performance Software
• Fuel Pump Internals Precision-Machined to Aerospace Tolerances
• DLC Coated Piston and Cylinder for Reduced Friction and Increased Performance
• Matched Piston and Cylinder for Absolute Precision
• Relatively Easy Installation

Instructions for installation (PDF): 034 Motorsports EA839 HPFP, Installation instructions

Examples of compatible models: