An automotive accessory designed to prevent lifter failure and lock engine mode for GM V6 and V8 vehicles. BOOST AFM/DFM Disabler keeps the engine in V8 or V6 operation to reduce hesitation and improve drive confidence. Is this the right upgrade for owners who want simple OBDII installation and greater long-term reliability?
⚡ At a Glance
- • Engine Mode Control: Forces V8 or V6 mode 100% of the time, fully disabling AFM and DFM
- • Best for: Owners of GM V6 and V8 vehicles with active or dynamic fuel management seeking greater reliability
- • Not ideal for: Vehicles with 10-speed automatic transmissions, C8 Corvettes, or 2022 Refresh Silverado and Sierra models
Installation uses the OBDII port for quick, plug-and-play disablement of AFM and DFM. Manufacturing and testing take place in the USA and the unit runs at a very low 0.71mA power draw.
Prevent lifter failure - with full AFM/DFM disablement
Active and dynamic fuel management have been linked to collapsed and sticking lifters, and operation disables those systems via the OBDII connection without requiring factory ECU reprogramming. Installation begins working in seconds and is reversible simply by unplugging from the OBDII port.
Reduced activation of AFM and DFM lowers the risk of lifter damage, improving engine reliability and reducing the chance of costly repairs.
Consistent power and throttle response - thanks to forced V8/V6 mode
The unit holds the vehicle in V8 or V6 operation 100% of the time, preventing cylinder deactivation events that can cause hesitation during acceleration. No changes to factory ECU coding are required for continuous mode enforcement.
Full power is available on demand, throttle response feels smoother and acceleration is more predictable during overtakes and heavy loads.
Minimal battery impact - thanks to ultra-low 0.71mA power draw
Designed for very low-power standby, the unit draws only 0.71mA while connected, one of the lowest low-power modes on the market. Engineering focus on minimal parasitic current reduces the chance of battery drain over time.
Negligible overnight drain lowers the risk of dead batteries and avoids no-start situations linked to higher parasitic draws.
✨ The 4 Key Reasons for BOOST AFM/DFM Disabler
- Lifter failure prevention - Reduces risk of collapsed or sticking lifters permanently
- Ultra-low power draw - 0.71mA consumption avoids dead batteries and no-starts issues
- Plug-and-play installation - Installs via OBDII, reversible with no ECU reprogramming
- Made in the USA - Engineered, manufactured, and tested using American components throughout
📋 Technical Details at a Glance
- Category: Automotive Parts and Accessories
- Compatibility: GM V6 and V8 vehicles with active fuel management and dynamic fuel management
- Fitment Exclusions: Not compatible with 10-speed automatic transmissions, C8 Corvettes, 2022 Refresh Silverado and Sierra models
- Installation Port: OBDII port, plug-and-play
- Operation Mode: Forces V8 or V6 mode 100% of the time
❓ Frequently Asked Questions
Q: Will this work on my GM V6 or V8?
A: Compatibility covers GM V6 and V8 vehicles equipped with active fuel management or dynamic fuel management; specified exclusions include certain transmissions and model refreshes.
Q: Does installation require ECU reprogramming?
A: Installation uses the OBDII port and requires no factory ECU reprogramming; unplugging returns systems to their original behaviour with no evidence of prior use.
Q: Will it drain my battery if left connected?
A: Power consumption is 0.71mA, engineered to avoid parasitic drain that can lead to dead batteries and no-start situations.
🏆 Our Verdict
Owners of GM V6 and V8 vehicles who prioritise reliability and simple installation will find the product suitable. Continuous disablement of AFM and DFM, combined with ultra-low 0.71mA draw and full US manufacturing, is the key selling point. Long-term value comes from reducing the risk of lifter damage and avoiding battery-related no-starts, helping to prevent expensive repairs.
