Thread: Trucks
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Old 10-15-2013, 12:58 AM
Tizzy Tizzy is offline
LawnSite Senior Member
Join Date: Jul 2011
Location: Connecticut
Posts: 383
Originally Posted by jbell36 View Post
24 is impressive, but i would have to see it to believe it...i know my 6.4 will never get anywhere close to that, unfortunately, even tuned...before the tuner i was getting 11.5

what year and engine is your duramax?
your 6.4 can get that. mine can. do a cold air intake, and egr/dpf delete. and buy a tuner that has emissions control and turn off regen. it will give you around 10mpg better.

It has nearly doubled my fuel mileage since I did that and it has a ton more power.
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