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4th Gen Ram Tech2009 - 2018 Rams and the 2019 Ram Classic: This section is for TECHNICAL discussions only, that involve the 2009 - 2018 Rams and the 2019 Ram Classic. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
I'm getting ready too tune my ram 2018. I got a new bypass and unlocked pcm .
I was wondering for the bypass. Do u plug in the red and black wire into the module under dash and plug the obd2 into the current obd or do I just use the bypass.
2018 ram
