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Campershell with 3.0 Duramax

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For those of you that have a shell with the baby max, what effect did it have on your mpg?


Im thinking about ordering an A.R.E CX Revo camper shell for my 2022 sierra refreshed 1500. I have the baby Duramax and am curious how much my mpg's will go down. Im getting great mileage right now so Im hoping it wont go down too much.


Pic of truck just for fun


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