RE: Is the HPI Nitro RS4 3 18SS Kit a good first kit?
I just bought a rs4 3 18ss and i am fully customizing everything before it hits the road. everyting is backordered everywhere. i am putting together the diffs now......i am not too happy with them. they are real stiff. are the ball diffs worth it and if so what ones are needed for the rs4 3 .