Im thinking that, that trim is OEM, but not VW! Im sure I can remember fitting that stuff to something in the 90s, but for the life of me, I cant remember exactly what... but Im sure that it was fitted GT versions of something as a bumper trim..... I'll sleep on it

As the pic shows, It should actually be black tape, with a printed red line, Why not get some 30mm matt black tape, and finish it with 10mm matt red... Will look proper OE then

Thom