If you're staying NA on the stock getrag but want more pickup I would say 3.73 is a good ratio without making the lower gears totally useless. If you're going FI then you actually want a much taller diff to stay in boost for a long time, like a 3.15. __________________ ![](image.php?s=50340b88b1364e09bc3f1decfd7ce3d8&u=9846&type=sigpic&dateline=1373440016) -Alex |