last weekend I removed the speedlimiter of my Suzuki Cara. The Cara has the same engine as the Cappuccino. I don't know if the computer is exact the same. But I translated the following website and removed the speedlimiter and it .....worked!!! And the nice thing is that the check engine light didn't work. Perhaps this 'modification' also works on a Cappuccino. Please compare the connectors and cables in details before you cut the wires!!! I did only the first stage and didn't modify the waste gate. I think that is a bit too tricky...
Please visit;
http://www.usiwakamaru.or.jp/~tatuya/limitercut/lcut.htm
and use worldlingo to translate;
http://www.worldlingo.com/products_services/worldlingo_translator.html
Marcel
DISCLAIMER
I can not garantee that it works on a Cappuccino and I am not responsible for any damage following the (japanese) instructions. Also please keep in mind that driving on high speed is also dangerous and risky!!