I would save your money. The maps aren't that impressive compared to modern Garrett and Borgwarner chargers. They are very expensive and not really geared to the diesel market. I feel that thier compressor wheels aren't geared for the higher boost numbers we require. Also the turbines are on the smallish side(I.E. lots of turbo baking) I have no complaints about customer service, but the turbos performance left something to be desired. Hope this helps steer you in the right direction.-Curtis:thumb: