Ive emailed mountune a couple of times regarding the kits and did ask for a 0-60 time, they said they didnt have one.
They did say though that upto 100 mph theres only half a car lengths difference between the 185 kit and 165 kit and the 195 kit is quoted as a 6.9 0-60
As a guess I reckon its going to be low 7's, maybe if you nailed it a 7 dead or something.