Its a form of forced induction..... the induction pipe has a small fan in it which will be spun up electrically to draw more air into the engine. I think they're exagerating their claims slightly though. A fart up the air intake would probably be more effective.
Personally I would risk fitting any non tested or approved parts to my pride an joy. Its a bit different than fitting one to a £500 Corsa
You have to also factor in the extra strain on pistons, head, clutch, gearbox....