James
September 13th, 2012, 6:28 AM
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James
I have a 2010 Z-71 with 33x12.5x20s and my gas mileage is crap. If I have the truck programmed will this give me an increase in gas mileage or do I need to change the gear ratio?
September 13th, 2012, 10:34 AM
#2
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6 speed or 4 speed tranny? A custom tune will do wonders for it. 33s aren't as big a difference as 35s so regearing may not need to happen. What gears are stock in the truck and what motor?
September 13th, 2012, 10:07 PM
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That's not that bad. Do the intake tube and filter then get a custom tune. Should put you around the 15 mpg mark and make the truck much more fun to drive
September 13th, 2012, 10:30 PM
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Good deal. Thanks for the info. I am going to get this done soon as I get home. I am also going to install true dual exhaust system with 12" glass packs. So it will sound pretty sweet as well.
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September 14th, 2012, 8:15 AM
#8
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If you dual it out you'll lose some bottom end torque and don't go to big of a pipe. No larger than 2.5" on a stock motor, get them to install a x-pipe in it as well
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