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2014 Chevy Silverado
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Tonnuea cover & underdrive pulleys

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Old Feb 27, 2008 | 2:34 PM
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bad2006z71's Avatar
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From: Virginia
Default Tonnuea cover & underdrive pulleys

Can anyone confirm better MPG with a tonnuea cover? i do mostly city driving so i cant see it helping much, though i do think it would look good.

also anyone have underdrive pulleys on? im looking at a set by asp racing that has an overdrive altenator pulley to keep the altenator charging at idle.

Currently pulling 13.5mpg with about 80% city driving, looking to squeeze a little more out of it.
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