You saw a lot of performance improvement from a coroplasted front splitter, ultarc--I didn't see a close-up of it, though. For those of us less DIY-inclined, does this look about the same dimensions as yours?
2013-2014 Ford Mustang - ROUSH Front Chin Splitter Kit
Or does one have to get closer to this for a real effect?
http://www.americanmuscle.com/boss-f...=V6&adtype=pla
Also, the rear window angle is a lot steeper than 17.5 degrees. Have you experimented with a taller spoiler to compensate for that?