AT4 Off road Performance option effect mileage?

trogi

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Thinking of ordering the 2021 AT4 with the off road performance option. Does losing the front air dam and the 1" inch leveler in the front effect gas mileage. I know the v6 ZR2 drops to 16/18 where the Z71 is 18/24.
 

Travelers43

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I have the same model - with no changes - 3900 mile - average 19 overall and 26 on the highway. Saw post warning to watch trans temp when removing the air dam.
 
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