Best custom tuning for 05

Slow05cummins

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Sep 28, 2019
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Hey guys! First post on here, so forgive me if this has already been a discussion.. but I just bought an 05 The mods will be attached but I would like to know you’re input on who writes the best custom tunes I have a smarty touch tnt-r unlocked and I have hp tuners for them to use. Thanks!
 

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I would recommend Firepunk using HPTuners. I’ve had their max effort 5000rpm tune on my 03 for a few years now and it runs amazing.
 
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