As I recall, Silla does not make a radiator for the DI, it only makes them for the DII. I ended up having mine recored with a 4 row, rather than a 3 row core, it was about the same price. So far the radiator has worked flawlessly. I think that including install and new fluid it was around $500. The DII radiators are available for around $250 to $300. Both the DI and the DII are relativley easy to remove and replace. Be sure to pick up some new o-rings for the oil and tranny lines. Phil