Lowers

I used these to help with the air coming under the windshield hitting me in the head.

I custom made from Lexan similar to Moxy and Edmonds
I liked the suggestion of making lowers from cardboard and then testing to see if they make a difference.  The pattern I made is similar to Moxy and Edmonds. 
I custom made my lowers from Lexan I ordered on eBay ($22) because I could not find .25 inch Lexan at Home Dept.   I cut them out on my bandsaw and used a drill saw to cut out the circle for the lights.
Larger lowers did help some with the wind buffeting but did not eleminate it enough for me.