034Motorsport High Pressure Fuel Pump Piston Upgrade Kit, Audi 4.0T The 034Motorsport High Pressure Fuel Pump Piston Upgrade Kit is a drop in replacement for the factory HPFP pistons in Audi 4.0T engines, including the C7 Audi S6/S7/RS6/RS7. Furthermore, this upgrade increases fuel flow by up to 50%, allowing your engine to meet the higher demands of ethanol (E85), race fuel, or high performance pump gas, while maintaining reliability under extreme conditions. Additionally, precision machined for reliability and performance, this 034Motorsport HPFP Piston Upgrade kit includes matched piston and cylinder sets to ensure accurate operation and maximum efficiency. The larger piston diameter improves overall flow, supporting high output tunes and optimized E85 configurations. Finally, the included High Pressure Fuel Pump Tool also makes installation straightforward. FEATURES Yields up to 50% Flow Increase Over the Factory High Pressure Fuel Pump Increased Piston Diameter Stock Pump: 9.98mm (Area: 78.23mm2) 034Motorsport Pump: 11.48mm (Area: 103.51mm2) Raises the Factory Fueling Limits Present in Audi 4.0T Engines Increased Flow to Meet the Demands of E85 Optimized Tunes 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 WHAT’S INCLUDED 2x Pump Piston & Cylinder Set High Pressure Fuel Pump Tool
