Drilling 4 holes into the C pillars - two on each side, then tighten with m5 bolts with spacers from both sides. Job I wouldn't dare doing myself, so gave it to professional.
Tommy: I dont think any adhesive will keep that amount of wind pressure on place in 140+kmh - and I dont wanna be driving scared that it could fly off on highway and cause some accident behind me or damage car behind me
Parked her indoors for the foreseeable future ������
Still give it a run out now and again to keeps things fresh