Unlock the full potential of your Audi 4.0T engine with the TGK Motorsport High Pressure Fuel Pump Piston Upgrade Kit. This kit is designed as a direct replacement for the factory high-pressure fuel pumps in the C7 Audi S6/S7/RS6/RS7, delivering a significant improvement in fuel flow. By upgrading the piston, the fuel system's capacity increases, allowing for higher performance when using ethanol (E85), race fuel, or optimized pump gas tunes.

Features:

• Larger piston diameter for improved fuel delivery: ~36.27% Increase of Flow
  • Stock Pump: 9.98mm (Area: 78.23MM²)
  • TGK Motorsport Pump: 11.65mm (Area: 106.596 mm²)
• Raises factory fueling limits, making it perfect for high-performance Audi 4.0T engines
• Optimized fuel flow to meet the demands of E85 and high-octane fuels
• Precision-machined internals, built for high performance and reliability
  
• Hardened Tool Steel with DLC coated piston for reduced friction and extended durability

Elevate your Audi’s performance with the TGK Motorsport High Pressure Fuel Pump Piston Upgrade Kit, designed to push the boundaries of your vehicle's fuel system capabilities.

What’s Included:

• 2 x Piston / Top Hat 
  
• 2 x 4.0T Seals
• 2 x 4.0T Tappet (Cam Rollers)
• 1 x 4.0T HPFP Tool