You' right, if it sound to good to be true then it is too good to be true. We'.ve all been raised to be sceptical of these type situations. I saw no carb certification other then their say so. You don't see the ends of the unit for hook up. I don't see one actually installed (a pic would be neccessary). The dreaded warranty issue, no mention of how that is affected. Sounds to me like a lot of what if's..................just a thought, if someone were to contact them, to offer one of us members a unit for a period of time trial, might help convince a lot of us to consider the purchase. I for one am not willing to guinea pig, but someone else might.