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Power Strokes
6.7 Aftermarket
6.7 MCC Tuning
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[QUOTE="colecoop56, post: 770936, member: 11286"] Ill try anything once..... Im testing out the SPE tunes right now and I am going on my first long road trip to Savannah, GA tonight so I am going to see what mpg I am getting. Before on my H&S canned tunes I was only getting like 17.3 hwy going 74mph. I feel like something has to beat that. My old duramax was getting 22 hwy. I really hope this SPE brings me to at least 19. [/QUOTE]
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