Now i'm getting conflicting info.
@Will_ says to order w/ the lip
@Desslok says to order w/o the lip.
ECS 8 mm spacers do not have a lip. There will be enough of exposed hub to center your rim. Their 10mm spacers and larger have a lip.
Any 8mm spacer without a lip should fit. Order from somewhere that offers free returns. Test fit on your hub without mounting the wheel. If the hub still protrudes, you're golden.
do you have to remove the factory dust cap wit all the spacers in the rear?
On my 2019, the dust cap is part of the casting, so it doesn't come off. Not sure what year this started.
If you use a spacer without a lip, there is no need to remove the dust cap. IIRC, ECS 20mm rear spacers are deep enough that removing the dust cap is not required anyway. Not sure of other brands.