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Old 07-09-2018, 12:25 PM   #1
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Join Date: Feb 2017
Posts: 2
Default Engine performance

We have a 2008 B/T Cruiser and we are interested in knowing if anyone has had any experience with after market programmers that can help with gas mileage and down shifting while going over overpasses?
We don't have to much trouble with downshifting but would like to get better gas mileage.
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