Our '87 5000 CS Turbo Quattro Wagon (pearl) just passed its 150,000mi on the odometer. Well is now a little over since the list was out of service. Glad to see Quattro at audifans.com is back.on line. To celebrate, I installed 1.8 Bar chip this weekend. I have combined mods set for 18 PSI of boost which seems optimal. YeeHaa! Ben .