Product Description
Boost DFM Disabler Module for GM "Global B" Vehicles
Works on 2022.5-2025 Silverado Sierra and 2021-2024 Tahoe Yukon Suburban 5.3L 6.2L
Compatible models include:
- 2022.5-2025 Silverado & Sierra
- 2021-2024 Tahoe/Suburban/Yukon
At this time, Boost does not support:
- 2019-2022 Silverado & Sierra with 10-speed transmission
- 2020 Suburban/Tahoe/Yukon with 10-speed transmission
Reduce DFM Cylinder Deactivations By 95%+
Based on official testing from GM, the DFM system deactivates cylinders over 1,500 times per cylinder in a short 15-minute drive — operating with less than all 8 cylinders approx. 60% of the time.
The Boost DFM Disabler automatically activates within 3-5 minutes of driving and keeps your truck in V8 mode 100% of the time once it activates, even disabling zero-cylinder mode while coasting.
This reduces overall deactivations by over 95%, improving performance and protecting your engine.
Improved Reliability & Lifter Protection
By drastically reducing DFM deactivations, the Boost Disabler improves reliability and longevity of your lifters, protecting you from the dreaded lifter failure issues plaguing GM's V8 engines.
While this device prevents DFM from engaging during regular driving, it still allows your engine’s components — including lifters and oiling systems — to activate briefly at the beginning of each trip. This design helps keep everything lubricated and functioning properly, avoiding concerns of sticky oil from long-term inactivity.
Simple OBD Plug-and-Play
Unlike other disablers that plug into the engine control module (ECM), the Boost device installs safely and conveniently via the OBD-II port. This makes it easier to remove before dealership visits, and ensures no risk to your vehicle’s warranty status.
Near Zero Battery Drain
Our newest Boost DFM Disabler draws just 0.10mA when the vehicle is off — a 7x improvement over our already low-drain first-generation model.
You can leave it plugged in with total peace of mind.
Made in the USA
From design to delivery, every Boost disabler is 100% American-made.
For any vehicles with DFM that are part of the Global A platform, ie. pre-2022.5 trucks and pre-2021 SUVs please see our Blue AFM/DFM Disabler which is compatible with these models excluding 10-speed transmission.
The Boost Disabler is not designed to be used on vehicles that have had the DFM lifters physically deleted. When performing a physical DFM Delete the ECM must be properly tuned via HP Tuners or equivalent programmer.
Emissions Statement from Boost:
Our device is designed to comply with applicable emissions standards and is sold with the understanding that it may operate within the legal emissions framework as outlined in the EPA’s Tampering Policy dated November 23, 2020. We have reasonable basis to believe that our device functions within EPA emissions standards and therefore is legally allowed to be sold and used on road vehicles.
Please note that we do not have an active CARB EO making this product not legal for use in the State of California until our EO number has been issued. It is the end responsibility of the user to ensure that their vehicle remains compliant with all local and federal emissions regulations.
