The Kleemann web site states that the "low boost kompressor" is about 25% less than their full blown supercharger, so that puts the cost of the full system at $8,667 without labor. Something tells me that it's actually more expensive than that. I think it would be cheaper to get someone to do a custom low PSI turbo/supercharger, like the one that mounts in the exhaust pipe (I forget the name of it).