I bought tghe SC for my Hemi QC just to get rid of the stupid DBW lag. Well worth it in my opinion. Stock, I would achieve 20-21mpg on the highway(and totally happy with that). But on Thanksgiving, I drove from my home near Edwards AFB to San Diego. I achieved 19.9 mpg overall but 23.9mpg from my home to Corona(approx. 120 miles)
23.9mpg!!!!! Wow, Just Wow!!