I purchased the MM3 from Ray with the emissions compliant because I wanted to keep my 6/100,000 warranty on my 2016 Ram 3500 but wanted to disconnect the EGR so I don't have that crap recirculating back into my engine. Yes you will go through a lot more DEF but it's worth it in my opinion. It's an awesome tune and I did a lot of research before making my decision on this MM3. Ray knows his stuff and has the best customer service anywhere! Eventually I will do a full delete when my warranty expires and you better believe I will purchase that from Ray when the time comes!


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