This right here. I went back to stock tune and still had a rough idle... unless would that be from having forge BOV on stock tune? Either way I was wondering the same, is the an authentic stock tune or is the Trifecta memicing what they know of the stock tune.What im curious of is where are they getting the stock tune from? I know when i owned hp tuners for my ss turbo, i had to pull a copy of the stock tune off and save it in a safe place for when i want to revert back. My fear is that the stock tune they are sending really isnt the stock tune at all, there for the real stock tune thats on the car will be gone forever.