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2009 Chevy Silverado 2500HD 4x4 crew cab LTZ
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Discussion Starter · #1 ·
Hey guys I am a new owner of a 2009 chevy 2500hd ltz duramax and I wanted to keep it stock. Any simple recommendations for a tune for better gas mileage. I don't want to delete anything, but am curious to hear what you have to say for an LMM duramax. Has anybody got a tuner from power up diesel? Thank you for your time.
 
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