4th Gen High Performance and Accessories 2010 and Up Talk about Dodge/Cummins aftermarket products for fourth generation trucks here. Can include high-performance mods, or general accessories.

"N" tune for Smarty Jr.

Old 03-10-2014, 08:11 PM
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"N" tune for Smarty Jr.

Last time I checked, M was the latest and greatest. I now see that N is available. What was changed from version M to N?
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Old 03-28-2014, 02:13 AM
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There needs to be an "O" version. Which has of course higher power levels and raises the RPM limiter.
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