The tune can be removed easily according to my installer . Warranty is definetly affected on everything make no bones about it I spoke to VW they have red flagged it already . But as my installer said to me call in before you go to dealer I'll remove the tune for a small fee. ie $50 go do your thing come back and I will put it back on. It's not a ecu tune therefore it won't be detected. Hope this helps. By the way it's Awesome !