gas milage will go up if you dont abuse your new power. its one of those mods like exhaust. for the first few weeks youll probably bury the pedal because its fun. then youll get used to it and look for the next mod to make you grin. its a vicious cycle(and expensive)

 

We are leaving for the track in about 10 minutes to put the tune to the test. We went to the track about 2 weeks before the tune and the weather was about the same. its been about 200 miles now on the tune now. He just dug up the old slips so we should have a pretty good before and after. NO MODS have been done since last time. Stay tuned.........

 

stupid question but where are the computers at in these trucks i just bought an 05 and im about to send mine in for a tune. just wanna make sure were its at thanx...

 

in the engine bay next to the battery.

Ok heres the scoop. I'll keep this short and sweet!
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Last Year ET with stock tires, 60* temps, and hypercrap
10.08 @ 69.92 2.31 60'
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Added 33inch tires! same temps, same program
11.01 @ 66.41 2.49 60'
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Ordered Nelson Tune (mild tuning 93hot) 33's, 70*
10.46 @ 67.47 2.48 60'
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Ordered re-tune to the re-tune (more aggressive and removed some TM), 33's, and a wopping 79* temp
10.21 @ 68.95 2.35 60'

Overall i must say I'm very happy with the results. Thanks Nelson Oh and the tune has only been on since tuesday!!! Not even 50 miles on it yet

 

so a .8 gain in hotter weather...very nice! hope we can get the same outa my truck

 

Yyyyep hotter weather and larger tires

 

I'm anxiously waiting on my tune as we speak or type. I should have it in by 5:00 atleast. I'm gonna go to the track next friday and see how I run. I'll keep yall updated

 

i got a sierra w a 5.3 rcsb mods include magna charger and gibson exhaust. after fipk II intake what kinda gains and should i see?
and what kind of TM? sounds like everyone is doing 80%

 

I dug some more research on these 33inch tires and found out that they weigh 53lbs a piece