The stocker on an '02 magnum 325 ot TB and prior is a 31 mm, and the '03 has a 34mm. That's the bulk of the changes to get 10% more power as they are claiming. They did go up 4cc and that's about it. It is a 10% bigger carb so 10% more power sounds reasonable.

Is there and Polaris techs here that can let us know if it will bolt up? I would like to purchase one but not without seeing if it will fit first.