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Sounds interesting but I'm not familiar with it. There have been other "performance enhancers" that were just a resistor, basically simulating what the sport switch does. They were worthless from all the past reviews. But I don't know about this one, it actually claims to have a micro in it.
One of the Amazon reviews
"This product changes the throttle response and states it changes the timing/fuel maps etc. I work at a high performance tuner. We have dyno tested this chip. It actually took HP/TQ away. This is junk! "
I wish there were more tuning options for our cars. BMW's have so many options to tune the car, but I haven't found anyone that tuned an SC430 without major mods.