2020 TB 5.3L 10 speed, DFM?

[Ed R]

Bought the TB new off the lot, 5/22/2020. Nowhere on the Sticker does it mention AFM or DFM. Do I just assume this truck has DFM?

When on the Edge Pulsar LT site. If I add vehicle, 2020 Chevy, Silverado LT 1500, 5.3L , 10L80 trans.

THIS PRODUCT FITS:​

Year: 2020
Make: CHEVROLET
Model: SILVERADO 1500
Submodel: LT
Engine Size: 325/5.3L V8
Transmission: 10L80
Body Type: Crew Cab Pickup

If I add vehicle 2020 Chevy, LT Trail Boss, 5.3L, there is not an option for a 10L80 transmission.

Talked with a nice lady at Edge. She assured me it will work, if not there is a 90 day return policy. I don't see why it would not work.

Anyone out there with A 2020 TB 5.3L 10L80 using the Pulsar LT #22451?

 

[Twister23]

Sorry to sound uninformed but what is DFM..?

 

[The Raven]

I don't think there were any 5.3/10spd trucks that didn't come with DFM, and it was only the 21's and 22's that were built without the controller chip. Regardless, you have the lifters so it's a moot point unless your concern is exhaust sound or throttle response.

 

[Keller]

Sorry to sound uninformed but what is DFM..?

Here is a great explanation.

https://gmauthority.com/blog/gm/general-motors-technology/general-motors-propulsion-technology/general-motors-dynamic-fuel-management-cylinder-deactivation-technology/

 

[Ed R]

I don't think there were any 5.3/10spd trucks that didn't come with DFM, and it was only the 21's and 22's that were built without the controller chip. Regardless, you have the lifters so it's a moot point unless your concern is exhaust sound or throttle response.

I want to disable the DFM. What I don't understand is why a Range Disabler RA003G on the HOLLEY site will work for a 2020 Silverado LT 5.3L 10 speed, but won't work for a 2020 Silverado LT Trail Boss 5.3L 10 speed.

 

[916 Trail Boss]

No one would ever know since GM didn’t put any indication its active on the dash.

 

[The Raven]

I want to disable the DFM. What I don't understand is why a Range Disabler RA003G on the HOLLEY site will work for a 2020 Silverado LT 5.3L 10 speed, but won't work for a 2020 Silverado LT Trail Boss 5.3L 10 speed.

There are no plug-in disablers that work, reliably, for the 10-speed trucks. It's a crap shoot...they'll work for one truck but not another. The Pulsar is the only simple option that works reliably. Custom programming is also an option.