[mhariush]

it's genuine Porsche and the date is 30-04-90, so 23 years old...but never used...

And it's for the 16 valve fuel rail. the two that connect to the same fuel pressure dampener/regulator at the front of the engine.

those hoses are connected to the rail but without being screwed on or clamped on, but are held in place by "barbs" on the connector... and it looks like only one of them is sold separately...