[Unreal]

Way too broad of a question. A dyno tune can be complete crap and lose power, or amazing. So comparing off the shelf SCT to a dyno tune is a pointless question. A dyno doesn't tune your car, a person does. You need to talk about a specific tuner, which odds are no one on here can comment on unless it a big name person. There are 5 local tuners here, 3 are complete idiots that I wouldn't let tune my lawnmower. 2 are good.

An in person tune from someone that knows what they are doing is almost always better than a canned SCT tune. I would never waste money on a SCT. Get HP tuners and do a mail order tune that way if you want to do something like that.