mobonic

just use epoxy glue to secure the screens to the inside fitments...

i went with a thicker gauged mesh that was powder coated black

JEllis

Yeah but the OE Cup screens have places for screws on the two side vents. You can see the screws on Gomez's Cup bumper. I was curious if the OP drilled holes for the screws or if he just glued instead.

Jason

tcsracing1

the two side screens fit into place with no glue or screws required with the bumper removed. the center screen lays into place on the car and is "sandwiched" on once bumper it put back on which keeps it in its place.

because the center screen is sandwiched between body and bumper i couldnt use the center trim piece.
the bumper cannot go back on properly without removing the center trim piece in place of the new screen.

you dont notice the center trim piece anyhow with the screens..... but if you wish to use the trim piece i think the only way is to do some trimming and do not want to molest the car.