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Old 12-26-2009, 08:18 PM   #12 (permalink)
wdb
lurker's apprentice
 
Join Date: May 2008
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PlainJane - '12 Toyota Tacoma Base 4WD Access Cab
90 day: 20.98 mpg (US)
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Air dam + undertray should be more efficient than either alone. Air dam + splitter + undertray should be more efficient still. Susceptibility to damage is probably the biggest reason you don't see more front splitters on road cars.
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