Yup, that's what the wing does (as i mentioned above). I learn to drive without it so I can pass on the straights.
The basics of my tune...
ECU, Intake Manifold, Exhaust Manifold, Racing Exhaust
Tranny, clutch, flywheel, drive shaft
Ride Height: -5/-5
Spring rates: increased front by .4, increased rear by .6
Rollbars: Increased rear by 1
Camber: 1.0/1.0
Toe: 0/0.10
LSD: Stock
Ballast: 65kg at the rear (increased a little as engine broke in)
Power reduction: none
Overall, it felt a little understeery under trail braking. It wasn't until grand valley that I increased the spring rates and that seemed to help. I had too much body roll and the outside front was overheating. After that was resolved, the car was pretty quick an easy to drive.