Dave S - I can vouch 110% for Mark and the work his shop does. He has looked after my Audi/Porsche cars for over 5 years now and am very thankful to have found him. I am sure you will be happy with the results. He has a Boxster too with a 911 motor dropped in and PSS9's, just dont take up his offer to drive it or you will be back for more work on your car