The UpRev tune might be locked. If that’s the case then the shop isn’t actually doing anything but uploading the tune and verifying power on the dyno. You could actually upload the tune yourself. If the tune isn’t locked then the shop is just using UpRev as a starting point so they don’t have to build the entire file from scratch. VQs are tricky to tune and I wouldn’t want just anyone building the tune from scratch.
On a topic listed above, the location of the MAFs is the primary problem with the Stillen kit. They are preSCer which basically means the ECU has no clue what temperature air it is receiving.
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