I've always wondered if I could extend the lower lip spoiler I'd added to my front valance, ala Bill V's attachment method. So I gave it a try. I not only lowered it, but if you look closely I extended it around the corner to the edge of the wheel well similar to the factory lower lip. There's a definite improvement in the stability of the front end at speed, ie over 120 or so at the track. There were places at VIR and MidOhio where the front end would start to get a bit light but now it's better. Still need a splitter to keep the front down but better than before and far better than with the stock bumpers and front lip.
Interesting comparison- same turn at Blackhawk, June vs October
Before:
Now: