Here is the ratios comparison, in case anyone is interested: US 5-speed European 6-speed ---------- ---------------- 3rd 1.231 1.320 4th 0.993 1.034 5th 0.730 0.857 6th 0.730 Final drive is 4.11 for both. Hoppen sells a conversion kit for $3990.00. Dave '92 S4