ISX15 to x15 2012 Pete

[Rawze]

First of all, I would suggest rebuilding the engine that came with it. If not then a short block and rebuild.

As far as putting a CM2450 engine in its place... the old engine wiring harness, old ecm, old turbo and old exhaust manifold manifold if necessary ... any other sensor swapped over to new engine that does not directly plug into the older harness, etc. - and then have a custom program made for the old ecm to run the newer model engine. The older ecm should also run the newer injectors without issues, so keep the newer injectors.