This is the infamous "U" hose that has been the culprit of too many 928 Engine Fires. The original hose is no longer available and we offer an aftermarket alternative. This particular hose is used on 85/86 S3 32v cars. Also on early 87 cars up to VIN 92HS862320. If you send us your VIN we can help pinpoint the hose you need. The hose fits between the fuel pressure regulator (right rear) and the fuel damper (left rear) under the air filter box. The location of the hose subjected the original hoses to heat soak and contamination from engine fluids. This new hose is heat resistant, compatible with engine fluids and will last the lifetime of the vehicle .