I read somewhere that the channel makes it easier to dial in your suspension since it balances airflow but I am not real sure on the aero dynamics side of things. If a flat will work better I would consider doing that because it would be easier. Any idea on angle, level or dipping? What about 6" or 9"? I tend to ask questions here first before posting on tuners because of the respect I have for you guys. Thanks again.

BTW this is a autocross car and not a DD.

96 RS
95 Toyota pickup - 8" lift, 33's (sold)
07 Toyota tacoma - TRD Sport
13 Ford Fusion

I like logic more when it travels in circles.