I will see how the transmission does with the stock 320hp and depending on that either leave it or de-tune it a bit for reliability. I am not looking for the power or speed of a high performance SUV (X5 M, ML63 AMG) but just feel that especially at 5200 ft above sea level it needs more than what it came with stock. I am also not interested in the supercharger kit because I would like to find an excuse to get rid of the oil burner under the hood. If i wanted big power I would go for the XLR-V motor but I am just looking for a nice, quick, fun VX.