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Do you have the screen that shows your Turbo boost pressure? In my T with sport chrono and in Sport mode, highest I've seen (in that 3-5K range) is 21psi. What does the Softtronic do; more boost....anything else? What was the cost; did you install yourself?
I have the screen but I don't use it. I need to be watching the road when I punch it, not the display. I think the cost was $1300 but you can confirm on their website. Yes, I did it myself with some help from Scott. One of the reasons I selected Softronic is that it plays well with both 91 and 93 octane fuels. There a lot of information on their website.