440 in an edge or newer I believe is an IQR only. Polaris quit making the 440 I believe when they left the wedge chassis in anything other than race form (they were in the evolved chassis I guess, but that may be as far as they went). They had some 500's, but those were harder to find since they were pushing the 550 fanner. I am not a huge fan of the 550, despite its lighter weight, I think it is underpowered and has a heat issue in the edge chassis.
