Yeah, can be run as FWD but the numbers might be off. In theory the flywheel power should still be right, but you won't get the full transmission loss through the haldex so wheel horsepower will be higher than you get in proper 4wd mode. People say that the haldex isn't a fan of rolling roads too, that the curve can be "odd" but mine was fine. There was a bit of a step at the start, and when the turbo kicks in, but not enough to worry about. I guess a haldex controller would be the best way to run it, with power locked to a 50/50 split.