Integrated Engineering High Pressure Fuel Pump (HPFP) Upgrade Kit - Audi S6 C7/S7 RS7 4G (4.0TT) 20-0589 This means you are able

This means you are able to add features such as Flex Fuel or Fuel Pressure Safety to a car without having to remove any factory functionality

As the piston moves within the damper

This allows the turbocharger to deliver more usable boost pressure to the engine

Direct mount fill neck installations

1998-2002 Nissan Skyline GT-R R34

Integrated Engineering High Pressure Fuel Pump (HPFP) Upgrade Kit - Audi S6 C7/S7 RS7 4G (4.0TT) 20-0589 This means you are ableOur premium HPFP internals kit for your Audi 4. 0TT V8 engine upgrades both factory high pressure fuel pumps with performance high flow internals. Leading quality components and strict QC process will reliably increase the fuel delivery from your stock fuel system with a set of 11. 67mm pistons providing additional fuel support for larger turbos and ethanol fuel. ADDED DISPLACEMENT The 4. 0TT's high pressure fuel pumps supply high pressure fuel