Are all C-12's the same?

There are some different pre fixes. 9Ns has 40 pin ecm like 5EK 3406E. 2WS has 70 pin. There most likely more difference to them.

 

I have a 2003 truck with a C12 serial beginning in 2KS. From the factory it was a 1450/1550 split torque motor, but has over 800,000 miles & do not want to bump it up until it gets inframed. No internal issues & still has the factory turbo. Though guessing I just jinxed myself saying that...

 

I have 669k and 20811 hours and have owned it for 110k miles Mbl prefix. Turbo went out 40k ago and went with a pdi tune and turbo. Thismotor is great

 

Good bad different on the PDI turbo & tune? That is the route am planning as well via Mr Haney, just not much info when talking about C12's online.

 

I would avoid MBL I have an MBN and tell everyone to avoid it unless they want to sink money into it unbridging it. Now if you found a very good truck with a low miles well maintained it might be worth itif the price was good. Just know what it is.

 

Either pdi or a Haney tune will work amazing. He should be less than pdi though but that's a question to ask him.

All it takes is a muffler tune and turbo. Not all that much. Could be much worse like a c13 c15 twins.

 

Yup it's a good little motor