Tuning isn't available yet since the car is so new..
You will see gains right away after you install the intakes. It will take a little while before you max out the gains as the ECU adjusts to the new bits.
A tune will always help, even if you are completely stock, there is power to be made from a simple tune.
Have you looked at the rest of the stillen bits? One of the forum members, Semtex, is already making over 300RWHP (on a DynoDynamics) with the intakes and the stillen exhaust. Thats without the headers too.
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