So this is my first gti and I was thinking about tuning it most likely with apr and was wondering what the negatives were is there anyway they will be able to detect I had a tune if I take it to get looked and risk my warranty even if I flash it back to stock? Can I keep it tuned everyday and just drive regular? Has anyone experienced any issues and what might I encounter, I'd really appreciate some help and also I couldn't find an exact price I heard it was 700? Any feedback would be much appreciated!