hi ive brought some custom raiser blocks and put them on the spoiler but have read something about a 50kg downforce at 100kms (if i rember correct)
and i was just wondering if the two screws are enough to hold the spoiler to the raiser blocks??
or does there need to be glue as well?

Thanks

I heard to use a double sided type of tape to help out. Other people like chanh55 used drywall screws to help keep it on tighter.

i used two long thick screws. itll never come off

Downforce is less problem, as named - it pushes the spoiler down. The problem is when you have upforce - then you might loose the spoiler. When I've mounted my TRD wing I used only two screws per side - they were very similar to drywall (but big) - the same screws I had in my stock spoiler.

i used the factory bolts and double sided tape

yup just big screws and a bit of silicone sealant