Hi Andrew.
Thanks for that.
I will monitor temps and try again. My OBDII tool doesn't connect to Forscan and the other random OBDII app I tried to use was telling me the trans temp was 176C.....yeah right.
I don't suppose you were able to export the stats from that trip?
I wasn't thinking just slots, I was thinking a louvre design to angle the air down, also to prevent the tyre from flicking dirt/debris at the cooler.
You're right, hot air over one tyre may not be a good thing. Not sure how else I could vent it though. There isn't any air flow inside that area, especially with the lower undertray on. The inner guard was VERY hot when the fan was on.