Anybody got any experiance of them, friend has just become a mobile tech for them and can do me deal on a stage 1 for my vRS

its your mate so surely he would be best to answer that q 's??

they are a big company with 100000000000000 people doing there mapping !!!

just make sure they do logging before and after to check fueling etc etc

If I was you id get it mapped by a well known company like shark,r tech etc who can solve problems if they arise,I've not heard of quantum before so to me it not worth the risk cheap or not.

Pure, weapons-grade BS:

9. Does it affect the manufacturers warranty?

The remap is invisible to manufacturer’s diagnostic equipment. Additionally many forward thinking manufacturers turn a blind eye to a quality remapping service, knowing that a properly enhanced vehicle can only ever benefit them. In the extremely unlikely event of a fault being attributable to our Quantum remap, then our own warranty kicks in.

There was a guy in chat a while back who had a Quantum map, screwed his car up quite badly from what I remember!