I've used a couple, I'll drop my thoughts below.
Cobb stage 0 - Look, the access port shows things!
Cobb stage 1 - I guess it did something? Sharpened stuff up, and felt a little increased beef. Nothing to write home about. Felt obviously aftermarket. Better than nothing, but stage 1 is total buttcheeks.
Cobb stage 2 - more of the above - a little more power, a little more aggressive. Even more obviously an aftermarket tune. It's like those free samples at costco - you try the stage 2 and now you want to see what a tune can *really* do for the car.
Stratified stage 2 - Makes pretty good power, gets a lot of negative corrections, costs me money in tires because the throttle is tuned so aggressively the tires spin easily, but the loss of traction is pretty progressive so I don't notice it as much. Front brake pads went pretty fast. Really likes one gallon e85 to a full tank of CA-91. Lots of fun, occasionally. Wouldn't want to run it all the time. Gets rid of rev hang which is really why I bought a tune. I found this tune "uncomfortable" because it was so aggressive. Not a bad tune, just not my cup of tea. Tried the pops tune, and the progressive pops tune. The pops tune was obnoxious and too much. The progressive pops tune was pretty cool, but ultimately a bit too much. I'd love a dash button to turn it on and off (the pops) on the fly, but that's not a thing. I liked the power and character, but the specific tuning I would describe as... vulgar. I wouldn't hand the keys to someone who hadn't driven the car with this tune without a warning to take it easy until they get used to how it responds.
Dizzy stage 2 - Seems to make similar power as the stratified, but the throttle tuning/mapping is *much* better for daily driving. Doesn't "kick" as much down low, but seems to pull better in the midrange and up top. I really liked how the dizzy wasn't so aggressive in terms of how the throttle pedal felt. It was less obviously an aftermarket tune than the cobb and stratified tunes, but you could still tell there was a non-stock feel about it. I was not a fan of the dizzy pop tunes. I never tried their burble tune, but from videos and descriptions it's probably what I'd have wanted. I went back to stock exhaust with a resonator delete, so I haven't bothered with an updated burble tune. Very daily drive-able without being obnoxious about it. If I was handing the keys to someone to drive the car, I'd mention "it's running a tune so it's making a bit more power than stock".
Adapt-x tune - It feels super-stock. In my seat of the pants opinion, feels significantly stronger than stock. Does not feel as "strong" as stratified or dizzy, but that wasn't the point. It's very safe, almost never get negative corrections. I would best describe the adapt-x tune as "super stock". Of note, getting the adapt-x tune to actually "learn" is kinda a pain in the ass. Very specific oil temp and other factors before it'll actually learn. Once school's out though, feels great. I think I could hand my car to a friend running this adapt-x tune and they'd simply say "wow ford made this fiesta a lot faster than I'd have thought", and that meshes with my desires. Very progressive and predictable. I know I've said it before, but "super stock" is exactly how it feels. Does not get grumpy when running shitty gas, it simply "adapts" without drama. I don't think it spins the tires as much as the other tunes, but it's honestly hard to tell in my FiST. When the tires spin, it does it progressively without drama or excess noise, but the tires are living a lot longer. (update-01282022 - I felt it was only fair to the vendor to go back and update the review with my ongoing experience. It did take longer overall for my car to "learn" initially, but I think that was a byproduct of always having freeway traffic so I couldn't do the requisite couple of pulls on the freeway, just ran out of room. It kept getting stronger and stronger, and does a good job of fairly quickly adapting to changes in fuel. Crappy fuel - it drops things down pretty quick. Great fuel, like a gallon of e85 in with a tank of normal stuff, and it learns that too, and you can feel it after a couple minutes on the freeway for it to figure things out. All in all, a great tune.)
![[:(]](/images/smilies/frown.png "Frown [:(]")
