I agree ! No drone after the switchover and responsive thru the whole throttle range.
I do not have a tuner [emoji3166] ( maybe i should) or even know if the 2012 suburban can be tuned. But heard stories and knew a guy at work who had to have the dealer tear into it and replace the DOD lifters and it does not sound fun.
So it was a cheap fix for me.
Not even sure i can say the gas mileage dropped 1/2 mpg. So i see no benefit for DOD other than CAFE marketing.
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