I tested this spacer on my 2016 2.7l, was getting 2-4 mpg more about 50 miles more per tank, 0-50mph is unbelievable fast for a 4 cylinder. for 2016 Toyota Tacoma SR, SR5 2.7L L4 - Gas. for 2010 Toyota 4Runner SR5 2.7L L4 - Gas.
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