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Old 02-16-2010, 11:45 PM   #2 (permalink)
moonmonkey
ecomonkey
 
Join Date: Dec 2009
Location: middleburg fl
Posts: 240

silver clown - '02 toyota echo 2 door base
90 day: 47.16 mpg (US)

white ghost - '05 prius base
90 day: 47.53 mpg (US)

white pearl - '12 toyota prius base
Last 3: 45.69 mpg (US)
Thanks: 33
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a smoother undertray will always help, some air will always get under ,and it might allow you to use a smaller air dam which is good because a dam increases frontal area,,, just my 3 cents.
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