I meant to post this in the "removing the wing" thread, but I guess it applies.

The way I look at the base and limited disrupter and SRT6 wing is style. The concept is to disrupt the air flow over the wing shape of the car to reduce lift at the rear end.

Does the disrupter or wing have to be so big?... no. it's style.

I've got a ity-bitty disrupter on my SLK32 and it works great up to the limiter.