I think if you decide on a wing, you need to get a splitter as well so the front doesn't get too light. That is what I found when I drove my car without a splitter for a pit. Additionally, I played with wing angle on my car and found i liked it agressive in high speed turns, but lightened fron on straight which was OK

Yeah....I think they are going for about 4K....Most likely $3500 is reasonable price. I am just thinking I may need one one day so torn on selling. Thanks for all the info.