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Longsnowsm · 07-24-2015, 03:18 PM

If you spend most of your time driving the highway then I would think it would be worth doing the lower air dam. If on the other hand your mostly city or evenly mixed then like Metro said you would likely lose the benefit in real mpg terms.

07-24-2015, 03:18 PM	#11 (permalink)
Longsnowsm EcoModding Lurker Join Date: Apr 2011 Location: US Posts: 70 Peaty - '03 Honda Insight Jimmy - '07 GMC Canyon 2wd, Extended Cab, SL Thanks: 22 Thanked 12 Times in 9 Posts	If you spend most of your time driving the highway then I would think it would be worth doing the lower air dam. If on the other hand your mostly city or evenly mixed then like Metro said you would likely lose the benefit in real mpg terms.