Who's writes a great tune for a 2015 6.7 / 68RFE?
Who do you guys recommend?
Who's writes a great tune for a 2015 6.7 / 68RFE?
Who do you guys recommend?
@WEDGEHEAD click the link below and follow it down the rabbit hole.
https://www.igotacummins.com/threads...pril-1st-2019)
DRD diesel is the best.
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