Put the oil cooler in the os wheel arch if it’ll fit on a angle if needs be...
I filed some of the bumper vent at the back to open the gap up to aid air flow
Works well there imo and keeps the bay uncluttered
At some stage I’d like a duct making up that goes off the rear of the bumper directly onto the cooler forcing all air through it...
But it’s doing it’s job fine where it is atm