From a quick read through of the forum, it seems there is little point chipping for performance gains. I keep seeing claims of between 20 and 30% for rechips on the Vito 112CDI turbo Deisel. Is this for real?? Anyone out there with first hand knowledge on the subject. If I was doing this type of work myself, I would be Dynoing before and after to show customer the real time gains, but as the suppliers don't have this info available it makes you wonder if the claims will stack up!! "the purple clad one"