raceme Ultra performance

**mechtorn** · 05-19-2016

I'm considering purchasing a raceme Ultra for my 2010 2500 mega cab short bed. I have 35 inch open country rt tires. Anyone have this setup? Also thinking about 5inch exhaust. Anyone have performance specs? Just curious of quater mile specs. I read they have updates for the transmission also anyone use it? I read there are 10 setting 5 that change the timing and 5 that dont. Whats the difference between the two. This is my first diesel truck. I have a lot to learn.

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**Power247** · 05-20-2016

Originally Posted by mechtorn

I'm considering purchasing a raceme Ultra for my 2010 2500 mega cab short bed. I have 35 inch open country rt tires. Anyone have this setup? Also thinking about 5inch exhaust. Anyone have performance specs? Just curious of quater mile specs. I read they have updates for the transmission also anyone use it? I read there are 10 setting 5 that change the timing and 5 that dont. Whats the difference between the two. This is my first diesel truck. I have a lot to learn.

Check out this thread. Lots of good Ultra info in here. https://www.igotacummins.com/showthread.php?t=4138

Greg
2012 | 2500 | CCSB | Custom MCC by Double R Diesel

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**Noneck** · 05-20-2016

And yes I think almost everyone on the world is running 35 inch tires on their 2500s with all rear gear ranges from 3.42 to 4.10 with no problems.

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**mechtorn** · 05-20-2016

Thanks for the info. What tuner do you guys recommend. My factory exhaust broke off behind the muffler so I'm ready to get a tuner and exhaust. Is 5 inch a pain to install as far a clearance goes? I just want a tuner that wont cause a bunch of issues.

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**beans20** · 05-20-2016

Originally Posted by mechtorn

Thanks for the info. What tuner do you guys recommend. My factory exhaust broke off behind the muffler so I'm ready to get a tuner and exhaust. Is 5 inch a pain to install as far a clearance goes? I just want a tuner that wont cause a bunch of issues.

The exhaust isn't that big of a pain to install. But if you are considering the RaceMe I would talk with @Double R Diesel about the MM3, it will likely be the best tuner since it already comes with custom tuning, that will eliminate a lot of the problems that most people have with the box tuning.

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**TX NIGHT TRAIN** · 05-20-2016

Raceme ultra is the most simple way. Basiclly plug and play. Some have issues and some don't. If I were you I'd look into the MM3 with @Double R Diesel custom tuning for best results.

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