That's called launch control... I think Uprev can be programmed to do it. You just have to set a map to hold revs at a certain point, then change to a full map via the cruise controls when you want to take off.
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Competition Clutch|Fast Intentions|Maxbore|NST|Setrab|Stillen|Tomei|Uprev| Z1
Avant Garde|SPC|Stance|Whiteline
Aerojacket|Seibon|Tanabe|TRS|TWM
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