Info on AFM/DFM delete options on 2013 GMC Sierra 1500 w/ 5.3 engine?

glenn27 · May 8

Good evening-just joined here, but do belong to several other forums-so I understand how they work..

Thinking about-talking to some knowledgeable folks about adding the plug in delete option-so it would be 8 cylinders all the time.

And yes--I do keep the oil changed regularly with Amsoil. Trying to avoid the dreaded lifter problems, as i don't drive the truck as much since I'm retired now.

Thanks for any thoughts-

glenn

CamGTP · May 9

Either have someone tune it with HP Tuners or just buy the Range plug in dongle thing for the AFM. Either option will work for you.

I charge people like $150 to do it with HP Tuners if they are local, costs me $100 just to unlock the computer anyway.

glenn27 · May 18

Are you saying the Range Brand plug in dongle would be the best bet?

Looks like also the most expensive-but with anything you basically get what you pay for. Tks for the response

glenn

davester · May 18

there are cheaper dohickeys for disabling afm/dfm. Some people have had a variety of problems using other devices.

glenn27 · May 19

15 hours ago, davester said:

there are cheaper dohickeys for disabling afm/dfm. Some people have had a variety of problems using other devices.

Ok--Thank you for the response. I value other folks knowledge here and other forums.

glenn

glenn27 · July 19

On 5/18/2026 at 1:28 PM, davester said:

there are cheaper dohickeys for disabling afm/dfm. Some people have had a variety of problems using other devices.

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I went ahead and bought/plugged in the new Boost brand dongle thing last week. Haven't driven it much yet-but seemed a little smoother/quicker maybe in stop and go traffic. What I did like about this brand was the reviews and made in USA> (hopefully).

B07 · August 26

On 7/19/2026 at 10:55 AM, glenn27 said:

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I went ahead and bought/plugged in the new Boost brand dongle thing last week. Haven't driven it much yet-but seemed a little smoother/quicker maybe in stop and go traffic. What I did like about this brand was the reviews and made in USA> (hopefully).

Don’t be fooled. Boost Auto sells a lot of Made in China parts. They just toss their name on it to make people think it’s all Made in the USA