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Old 08-28-2009, 09:55 AM   #29 (permalink)
Deezler
Master EcoModder
 
Join Date: Apr 2008
Location: Michigan
Posts: 261

Bio Deezler (sold) - '03 Volkswagen Jetta GLS TDI
90 day: 50.78 mpg (US)

The Beast. - '03 GMC Sierra 2500HD SLT
90 day: 12.86 mpg (US)
Thanks: 0
Thanked 36 Times in 22 Posts
It might be hard to see in my pics, but I really doubt much airflow is getting on top of my panel from the front edge. Some may be sneaking around the sides, or being forced in from the wheel wells if strange aero is happening there. But the front and rear of the panel are pretty well concealed.

I thought about trying to make strategic exit points for any entrapped air pressure, but it just made more sense to have it all smooth.

My scan gauge is showing some noticeable gains for this piece; best ever commuting mileage result on the way home yesterday (and still at 75mph). woot.
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