De-railing the thread, but if you want absolute best launch times you want either a racelogic traction control unit, or proefi traction control (which also gives you flex fuel and a few other cool features). I think both will also do launch control and flat shifting, where you can just keep it floored from start/between shifts.
Don't think anyone has fitted these to our ECUs though. Since those units cut fuel/spark, the built in ECU will see it as a fault, so you need a special tune. I think CA-Auto out of the UK can do the racelogic unit.
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