Originally Posted by James Sonne
It will only void the warranty on the parts that a change you make has a direct effect on. If you put a supercharger on the dealer can void the warranty on your engine.
I have no doubt that letting Kleeman (or anyone) do this to your Crossfire would completely void the entire D/C powertrain warranty.
As Boba noted... D/C offering the upgrade (like many other manufacturer's do in their "performance" aftermarket lines) is the only way you're gonna get an upggrade that doesn't totally void your OEM warranty.