Bartuning has now worked on my 2013 S5 twice now in the last 1.5 years. Both times I was expecting a high cost for parts and labor, and both times they were quick to find the problem and were able to fix with low cost and had me back on the road. Mike has 20+ years working on Germen cars, and it shows. Great guy, great mechanic, and would recommend 10 out of 10 times.