Opinion 2003 s or 2005 base?

[laphan]

Originally Posted by xamfed

I thought it was the 06 that had the newer engine.

Here is the quote from LN website:

MY02-05 will need a single row retrofit kit, although depending on how late the build date was, there may be some MY05 vehicles with the updated M97 IMS, which is not serviceable, at least without teardown of the engine.