Quote Originally Posted by cumminsdieselfreak View Post
You can use the DRD MM3 to save your stock file. You can then leave it on stock with the tuner installed until you get time to do the exhaust.


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Awesome! Thank you for that. Yes, I figured it made sense to do it that way too, but hey, I was wrong once before.... it was a Wednesday... LOL!

While it's still in "stock mode" will all the PID's work as well?

Thank you Diesel Freak!