6 cylinder models
- The smallest stage contains the Rotrex C30-94 supercharger, which delivers a maximum output of around 350hp.
- The middle stage is operated with a larger Rotrex C38-91 supercharger, which delivers approx. 400hp maximum power.
- The large stage uses the largest Rotrex C38R supercharger, which delivers up to 500hp here. The maximum possible increase in performance through a supercharger.
318is
- The only stage contains the Rotrex C30-84 supercharger, which delivers a maximum output of around 350hp.
M3
- The only stage contains the Rotrex C30-94 supercharger, which delivers a maximum output of around 430hp.