Description
The Range AFM/DFM Disabler allows your V6 or V8 GM vehicle to run in full cylinder mode at all times, preventing the Active or Dynamic Fuel Management system from dropping cylinders.;Range AFM/DFM Disabler keeps you in full power 100% of the time.; Simply plug into your onboard OBD-II port and it instantly begins working to eliminate the AFM/DFM system.; The power and control you need in any situation.; The Range AFM/DFM Disabler does not reprogram your factory ECU.; Leaves no trace. Unplug it to return to factory settings; Fits all V6 and V8 General Motors (GM) active or dynamic fuel management vehicles, includes cars, trucks, and SUVs.;
Imported customer feedback
What customers reported
4.3 / 5
127 ratings
Source: Amazon. These reviews were imported from the source marketplace and are not reviews of purchases made on this website.
Vehicle information
Available fitment details
Listing compatibility notes
- Unplug it to return to factory settings; Fits all V6 and V8 General Motors (GM) active or dynamic fuel management vehicles, includes cars, trucks, and SUVs.
Fitment data is provided as a buying aid. Verify the listing against your vehicle and existing part before ordering.
Exact identity, part numbers, model references, and available compatibility evidence
Buying guidance
Quick decision
An identity-first engine management systems listing organized around stable product references and available compatibility evidence.
Fit and size notes
- Match the complete identifier, side, position, connector, dimensions, and visible design with the existing part.
- Treat uncertain vehicle notes as a buying aid, not as a confirmed fitment guarantee.
Specification notes
- Canonical product: MP-US-B08941DGJP
- Source product ID: B08941DGJP
- Category: Replacement Parts / Engines & Engine Parts / Engine Management Systems
- Available images: 2
Before you buy
- Match the complete identifier, side, position, connector, dimensions, and visible design with the existing part.
- Treat uncertain vehicle notes as a buying aid, not as a confirmed fitment guarantee.
Eric Bowmaster –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
I tried this on my 2014 Sierra with a 5.3 litre it does exactly what it’s supposed to do keeps in 8 cylinder making the truck run a lot smoother does not seem to shift and jerk all the time like it use to it did not affect the fuel mileage at all I am satisfied with this product and would recommend it for anyone who is wondering about it
Customer –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
The box is battered and the unit was loose inside the box. Plugged it in and only one LED light is on. Smelled like it ran rich. 2017 Chevy Tahoe with 20l miles. It did stay in V8 mode. Defective if nothing more than LED lights not working and probs my used. Sending back. Will try again with a direct order from the manufacturer.Update: I ordered one direct from the manufacturer and the box and item is clearly brand new. The unit has a clear plastic protective vinyl on it which the unit above didn’t have. Works like it should. Seems like Amazon resellers are selling a lot of used/returned.
kenneth maynard –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
it is ok but my truck shift harder since i put it in.but great no having the dam engine jumping between 4v and 8v all the time in the city.
anthonydorman –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
Loved it work great car runs a lot better
Tural –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
Bought it 1 month ago, so far is great. My truck wouldn’t go into V4 mode anymore since I leave it always on.
joe phelan –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
All good so far just new time will tell
OneTek –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
Plug and play… just make sure you select the correct model for your truck (year is important as it needs to be for that specific type of transmission). I didn’t notice any fuel mileage deterioration (might even be slightly better).
Ritchie Dodd –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
The Range AFM disabler works exactly as advertised and I couldn’t be more pleased!
reuben storandt –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
It works great .
George Bralove –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
Easy to install it made the engine run smother improved performance
Tommy Fraser –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
Installer et fonctionne pas parcontre le commerçant m’a rembourser et j’ai du payer moi même le retour au vendeur !
tracy –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
Bought it and must say very impressed. Does what it says
Mark Charles –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
Plugged it in and it will still shut off 1 out 5 times you stop. As far as I can tell it never did do away with the AFM. Very disappointed