So I'm going to be purchasing my 2017 golf R next month and I just want some feedback of what people thought about each of these tunes if you have one of them , money really isn't a issue for me just want the better product for the money your paying.. I understand JB1 is under about $400 and the stage 1 APR tune is $799 or so ... So my question is the apr tune that much better ? And with either of these tunes do they both void manufacturing warranty ?