prov sold... but the vc is pumped up to 250nm from the std 25nm which they were when new so most std diffs probably so dont even have 25 now.. (from bara not me). the few miles that i have done in it were fine and felt like the car had more grip if thats possible but then my old one used to just spin up one wheel..
i couldnt compare to a quaife as ive not had one...
thanks.
jay