TRNW-2: 6L80 factory tunes

[Tod Chretien]

Attached is stock tune for a 2011 GMC Sierra 5.3 6L80 4X4.

BTW: This file can be found in the HP Tune Files on the TRNW website.

-- 
Best Regards,
Tod Chretien
TRNW Inc.
https://www.trnw.net

On 9/24/2025 5:57 AM, Brett Karulak via trnw2 wrote:
> I have a 2011 4x4 1500 5.3 Truck.  The customer had a junk yard tahoe 
> unit put in it a while back. I have pulled and will be rebuilding the 
> junk yard unit as the other was a core sent back to the junk yard. 
> When it comes to differences in the tunes, are they very similar or 
> very different assuming engines are the same.  In other words, do I 
> need to have the tehcm programmed to match the vin?  I have used my HP 
> tuner 3 times now on 6ls, does someone want to share their file for 
> this truck instead of programming it to the vin.  I know I don't have 
> a file saved for this year's model and 4x4 yet.  I reuse all techms on 
> OHs except the bad certain ones from 2017 and then see how the truck 
> operates after overhaul before I replace it.
>
> Thank you,
> Brett Karulak
>
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