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Old 04-13-2012, 09:01 AM   #3 (permalink)
Sven7
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Join Date: Aug 2011
Location: Warren, MI
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Boo Radley - '65 Ford F100
90 day: 13.28 mpg (US)
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Belly pan - EcoModder

Expect up to a 5% MPG improvement. Aerohead has posted results from studies that claim up to 15% improvement but I think those are RWD 70's sedans with very bad baseline aero.
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