Comprehensive Guide to S67 ME files needed
 

With so many different versions available, I am wondering if anyone could point me towards a "guide" that explains what revisions were made from version to version. The list of versions I am aware of are:If such a guide does not exist, maybe one can be assembled through the input from some of you.

In my opinion, the M tune is the best of all the recent tunes. I've ran G-M, M has the best power and EB combo for my truck

I just went from J to M and M is a much better tune

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When I posed the question, I was looking a 2010 that had 35000 miles on it. The plan was to deleted right away. I ended up finding a brand new left over 2012. I just cant bring myself to delete it just yet. I've got to put some miles and time on it before I can "void" the warranty. I did buy a tuner and will soon be buy the other necessary delete components and will set them on the shelf for a later date. I found a great deal on a Smarty Jr and snatched it up.

where can i get the M tune? is there a link to download?

i currently have the K tune. what makes the M better?

You may find this thread informative, plus the file download link:

Smarty Discussion

thanks mdub!

Do some of the the tunes affect the Exhaust Brake negatively?

guess i will be the odd ball then. i ran the M tune on my truck and i thought he truck ran like crap. felt like it had no power etc. also the exhaust brake felt like it did not work. my truck has ran the best on the L5 tune. oops sorry i just saw you guys was talking about the smarty SR i have the JR. so maybe there is a difference in tuning?