Paul Keas is doing some trans over here in W.A for Allfast torque converters inbetween whatever else he does, that is why I ask, ive spoke to simon from allfast and weighing up options!!
BPT = Professionals, got 50 more rwkw and extra 100 nm of torque than xtreme tune with no changes to car, and with an engine that xtreme claimed had to be "rebuilt"
I dont down shift as you dont really need to and those speeds you are talking about shifting down are too high, if I was going to down shift id try to stay in 3rd until I drop to 30 km no higher