Upgraded center aluminum drive shaft and upgraded aluminum dog bones all around. Adjustable arms front and rear. If you know these cars you will know the hop ups alone are expensive. Diff is tightened for either drifting (rear) or racing (front). I am selling it as a rolling chassis but will include a battery, motor and esc. If you already have other cars with a remote and receiver this is a great way to get into onroad. I am not using it and would like it to go to someone who might use it. I am also willing to swop for other on road rc parts. The car comes with extra shocks and its manual. Feel free to send a whatsapp to 736 - show phone - .