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Diagnostic Tools

AFM Disabler

Name: AFM Disabler
SKU: AFMD
Price: 80.99 USD
Availability: InStock
Rating: 4.88 (16 reviews)

SKU: AFMD

4.9 (16 reviews)

$80.99

In Stock & Ready to Ship

Designed for GM vehicles equipped with AFM, the TOPDON AFM Disabler keeps your engine in full-cylinder mode. Eliminate shudder and restore smooth performance with a simple, plug-and-play solution. No ECU modifications, no battery drain, just reliable power you can set and forget.

Fast Shipping

1-2 business days

Secure Payment

100% protected

Easy Returns

30-day window

Product Details

TOPDON PROFESSIONAL

AFM Disabler — Professional Overview

TOPDON AFM/DFM Disabler keeps GM V6 & V8 engines running in full-cylinder mode to eliminate rough idle, V4 lag, jerky acceleration, and potential reduction of AFM/DFM lifter issues. This plug-and-play OBD2 device require

PRODUCT INFORMATION

Features and specifications

TOPDON AFM/DFM Disabler keeps GM V6 & V8 engines running in full-cylinder mode to eliminate rough idle, V4 lag, jerky acceleration, and potential reduction of AFM/DFM lifter issues. This plug-and-play OBD2 device requires no ECU tuning or permanent mods. Enjoy smoother throttle response, stable towing power, and improved reliability. Features smart low-power sleep mode, NFC quick access, and compatibility with supported GM AFM/DFM-equipped vehicles, including Chevy Silverado and Tahoe, GMC Sierra and Yukon, Cadillac Escalade, and more. See the Vehicle Compatibility List for supported model years.

OFFICIAL PRODUCT MEDIA

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Customer Reviews

4.9

Based on 16 reviews

Pinned

AR

Anthony R.Verified

· Aug 2, 2026

Great product

Works as advertised

MH

Mark H.Verified

· Sep 1, 2026

Great Unit

This is a great AFM Disabler. It was easy to plug in and it activated right away. Have been using it for about a week now and the V4 symbol has never come on. I can tell that it's working just as intended. I especially like the sleep/low voltage feature as I don't drive the Vette every day so sometimes it sits for a day or so. Nice to know the battery won't go on me.

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