Well as far as modifications that I have done! I have a Trinity D6 12t double mod motor, & my speed control is a novak dually dual profile. My batteries, are venom matched 3600 mah NiMh with dean connectors. Was looking at upgrading the drive shaft, but did not know if it was needed! The one upgrade that I will be doing here real soon, is switching out my JRxi2 Radio, and receiver with the Spektrum DX-3 DSM Radio System. After thats done, I was looking too better my chassis, and thats why I was looking to get some feedback on the graphite!