I bought a 2015 King Ranch 6.7 diesel engine about two years ago. It has approximately 300,000 miles on it, and it’s running smoothly. When I purchased it, the DEF system was removed, so I assume it’s still active since it has no warning lights, codes, and is running well.I’m planning to have the egr delete 6.7 powerstroke., and I’m wondering if this deletion also requires tuning or programming. If it does, how do I go about it? Do I need to purchase a tuner, or can I take it to a professional mechanic? This is my first diesel engine, and I prefer to do my own repairs. However, I’m not very familiar with the tuning process and procedures. I would greatly appreciate your guidance on this matter.

 

You would need to purchase a tuner. Look north for tuning.

 

Are you sure it has EGR? I think it'd be weird to delete the DPF but not EGR