well my Z isnt turbo yet, but I do have the New Greddy Profec OLED ready.
On my supra I am running the older unit, Greddy Profec B Spec 2. It holds boost stable and is super easy to adjust. Original tuning on it does take some time with several pulls until you get it set where you want it, but once set you can forget about it and let it do its work.
I assume the New Greddy Profec OLED i have for the z will work just as well( I know they shrank the actuactor size down) Only difference being a viewable screen to view the boost graph and other features.
Greddy worked very well for me in the past so I had no reason to switch to hks or blitz styles.
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