After a year's worth of driving around with no front plate (& probably being just lucky), I now have a similar setup to Pete's. Mine is mounted on very thin s/s brackets - the slightest touch bends the plate back almost flat.
Like Pete, no noticeable cooling problems, even on 38degC days.
I figured that there was no sense in waving a red flag in front of a bull - some cops will look for any obvious excuse to pull you over, so why invite further trouble with loud exhausts, emissions, etc, all for the sake of sticking front plate on & not getting pulled over in the first place ?
Kind Regards,
Peter D.