Most parts are interchangeable, the main modifications were just to the chassis, top deck and shock towers. If you go to the link I posted above for the parts list, each page for the part will list which cars they are compatible with, so you can see which ones are used on the Sprint2 as well.
For example this link to the suspension arms
lists all the Sprint 2 cars as well as the Sprint EP cars to show they are also used on the Sprint 2.
For those Sprint 2 parts that are different, they should still fit straight on the car.