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Discussion Starter · #1 ·
I'd like to start by saying I'm a 22 yr old from Texas raised in Dallas but now live in the country I have a 2010 Silverado LTZ package 5.3 regeared to 4.56 gears
I get 17 avg mpg
Flowmaster 20 series turn down
K&N intake
2 12 in kicker cvts
35 in federals tires
20 in fuels
7.5 RCX lift
And a couple other misc upgrades.

And I also have a 2002 duramax fully loaded
I get 22 avg mpg
K&N intake
Efi live
8 In Zone lift
35 in Toyo open country m/t
Ppe boost valve
Upgraded Allison transmission
8 in kicker L7
And other misc upgrades
 
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