…... wanting to get the cp3 conversion and got a question after getting it done will I need to re tune?....
My apologies that my earlier post in this thread did not completely answer your question.
I recommend LIMITLESS DIESEL. They are going out of their way to help me get a CP3 conversion kit for my '13 LML. They are a dealer for S & S DIESEL, who advertises that their CP 3 conversion kit is "50 state with pump CARB exempt no tuning required".
Unfortunately, like many mfgs, S & S does not have a provision for direct contact of any kind - they wouldn't even talk to my local GM tech reps.
That's where LIMITLESS comes in - that's who I've ordered my kit from; ( should be here any day now) that's where you can confirm the answer to your question re. tuning. Again, their literature says "no tuning required" .
May I suggest you don't get too annoyed by some of the posts in here; obviously, they feel a need to post even tho they may not even own LML's & thus may not have as much experience or sound advice like, for example, LIMITLESS DIESEL can provide you.
To that end, don't you agree the Internet performs a valuble release for some folks with personal agression problems - provides a release for them; they can post whether or not they have actual knowledge about a question. Makes em feel ruff & tuff & macho. I think that's a good thing - these people sound to me like folks who might otherwise get aggressive or worse ?