Originally Posted by
wareagle84
Some people run the "upgrade" HPI servo's and like them. I prefer something better like a digital/core less Hitec or Savox. Both have been good to me. More torque and faster response. Unfortunately you'll likely have to mod the servo housing thingy on the Sport 3 because of its design.
There should be a drop in replacement that fits though, right? Why would I have to mod the housing?