Just got back from the tuner with the Z
I'm very impressed with the results. The throttle is notably more responsive, especially in the lower and mid-ranges
I'm gonna eat some dinner and then write up a review later tonight.
Joe @ Dynotronics did a few major adjustments like adjusting the fuel map, recalibrating the MAF sensors, and cam timing (no VVEL yet). There are a few things he says he's not quite satisfied with, so this is still a tune in progress