It's below the roof line, in this slow/turbulent air going across the flat rear deck. Raising it up 2" into clean airflow will really add some downforce. Several wind tunnel tests done to show how poor the low stock height is for functionality.
OR, I could do a fastback conversion
for mega bucks though:
Forgot to mention, it ate up maybe 1/3 qt of oil in 4 sessions, so 80 minutes of racing. In my last session on the long left sweeper I noticed my oil pressure would flicker as I got into the higher rpms exiting the turn. I was told to be careful on long lefts because they can oil starve. It was at the min line on the dipstick. So next time I have to bring oil with to top off between sessions, and I decided I'm going to do the oil pan baffles mod.