I went with Visconti on my first EcuTek tune and I thought it was a night and day difference from my Uprev tune. Seb's tune was much better though and his communication is on point. I actually reached out to Visconti first to redo the tune, but he never got back to me after a few emails. He is pretty notorious for this unless you are one of his GTR clients.
As for the external MAP sensor, you'll have to contact Specialty Z to order one. I believe Seb did a hybrid tune with mine, but I actually forgot to confirm that with him. It was supposed to utilize both MAP and MAFs for tuning, so you get the best of both worlds.
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