034 Motorsport High Pressure Fuel Pump Piston Upgrade Kit - Audi 4.0T

Product Description: The 034Motorsport High Pressure Fuel Pump Piston Upgrade Kit is designed to be a drop-in replacement piston for the factory high pressure fuel pumps for the Audi 4.0T engine in the C7 Audi S6/S7/RS6/RS7. By upgrading the factory high pressure fuel pumps with the 034Motorsport High Pressure Fuel Pump Piston Upgrade Kit, the factory fueling limits are raised by up to 50% in the Audi 4.0T engine. This increased flow allows the fuel system to meet the higher demands for ethanol, race gas, more pump gas! 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 an