See: SWORKz 

SWORKz have introduced a new Worlds rear end conversion kit for the S35-3. The rear conversion kit was developed for tighter tracks such as the 2018 Perth worlds track were you need the car had rear more rotation and front steering. Factory driver Jörn Neumann had the following to say about the feeling of the car with the rear conversion kit:

“My feeling is that the car has more rotation which is good at tighter tracks, where you need a lot of steering. On normal size tracks, the original S35-3 rear set up is better as it makes the car more stable.”