The do88 vacuum F-hose for the 2000–2002 Audi RS4 Quattro 2.7L BiTurbo (B5) is a model-specific vacuum line supplied in blue and intended to replace the original F-hose routing. It restores the factory vacuum connections for B5 RS4 applications and is useful during maintenance or when replacing degraded vacuum plumbing. The fit matches the listed model years to maintain proper system operation.
do88 00-02 Audi RS4 Quattro 2.7L BiTurbo (B5) F-Hose - Blue