Genuine Audi RS4 Fuel Return Valve for Retro-fitting on 2.0FSI Turbo Engines
Direct replacement higher pressure fuel return valve for the T FSI engines.
Fits: 2.0T FSI Engines.
This component is necessary when running a KO4 Turbo and going to Stage 2/Stage 2+ with some software brands.
Note: Please contact the person mapping your vehicle to make sure this item is required before installing.