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Power Strokes
6.7 Aftermarket
Mpg
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[QUOTE="8WR_ZJ, post: 1500805, member: 11387"] Agreeded muffler will not do a single thing for mileage. My hasnt changed since I added mine. What size tires? What gears do you have? Do you have a lift? How much idle time do you see? I get 17-19 40% city/60% hwy very low idle time. On straight highway trips I've gotten as high as 23.1 back and forth to houston twice on the same tank. I have 1.25 inch shorter than stock tires (not my choice on the tires I was in a bind and all they had in stock for the load rating) and 3.31 gears in my truck. I drive 1 or 2 over the speed limit, but do not drive over 75mph unless there is someone that deserves it....all hand calculated and almost always fill up at the same station and pump. GH sotf tunes is what i am running. Sent from my SAMSUNG-SM-G891A using Tapatalk [/QUOTE]
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