Originally Posted by
MichaelCox
Hello everyone,
I have a 2018 2500 4wd with 8K miles that I intend to do heavy towing within the 15K-20K lb range. I am wanting to put the MM3 EGRless box on it and when I spoke with Double R Diesel and they made a comment about only using the 30hp tune when towing or I would rip the stock tranny out of it.
So in doing some reading on here, I saw where Ray told someone to use an ultra-low stall converter and a valve body from RevMax in fairness he wasn't talking about towing but I started looking at RevMax and ATS.
I called RevMax and spoke with Josh about upgrading my stock system and it seems I have two options:
1. Get a Stage 5 converter with either a low or ultra-low stall, flex plate, valve body, metal filter screw, and a thermostat bypass block for $2,500 add the direct-oiling input shaft making it $3,400.
2. Get the series 550 with thermostat bypass, flexplate, stage 5 converter, and direct-oiling input shaft for $7,300
Just FYI:
I don't want to frivolously spend money and I'm not looking to rotate the earth with power. I'm fine with running a 60-100hp tune and leaving the emissions alone. I just want to be able to unlock some of the power the truck has but at the same time keep it reliable and use the power I would be paying for.
Lastly, I will be running 305/55/20 which is the same 33.2in diameter as the stock 275/70/18 that came with the truck.
I appreciate any and all help.
Michael
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