Choose Your FlexDrive Disabler

Find the disabler made for your GM truck or SUV. Each one plugs in within 10 seconds and is backed by our 30-day money-back guarantee.

Real Trucks, Real Results

What GM owners say after plugging in this device

★★★★★

“Knowing the history of lifter problems on the 5.3 AFM engine, I didn't want to take the risk on my 2012 Tahoe with 100K on it. Installation was super easy and the product does exactly what it promises. For the price, it's way cheaper than taking it to a mechanic. The effect is immediate and the install is very simple. Works perfectly and I don't have to worry about the engine anymore.”

JaynIWI
2012 Chevy Tahoe 5.3
Verified Purchase
★★★★★

“Works great, best thing I've ever bought. The truck has never run this well, it stays on 8 cylinders all the time. It's a 2014 GMC 1500 with 75,000 miles. Gas mileage is the same so far. It's been a month. Would buy again!”

Karen
2014 GMC 1500
Verified Purchase
★★★★★

“Works great, gave me great horsepower. Got to keep it plugged in, but fit perfect on my 2012 GMC Sierra.”

Bruce
2012 GMC Sierra
Verified Purchase

End the Switching That Wears Down Your Lifters

FlexDrive stops AFM from shutting off cylinders 1, 4, 6 and 7, keeping your engine in full time V8 mode, just as it was designed to run.

FlexDrive AFM/DFM Disabler

No More Cycling

When you cruise, AFM turns off half of your V8 hundreds of times on every trip. Each switch makes those lifters drop and come back up. FlexDrive keeps the system from engaging, so the cycling never begins.

Plugging FlexDrive into the OBD2 port

10-Second Install

Locate the OBD2 port below the dash on the driver's side, just above the pedals. Plug it in, start your truck and go. No tools, no app and no subscription.

GM truck on the road

Completely Reversible

No ECU tuning and no changes inside your engine. Unplug it before a dealer visit and your truck is just as it came from the factory.

Rated 4.91/5 based on 34,382 ratings
Join Thousands of
Happy Customers.
Customer photo from Gregory
★★★★★
Gregory✓Verified Buyer

“Works great on my 2011 GMC Sierra 1500. Great customer service too!”

FlexDrive™ AFM/DFM Disabler
$84.95
Purchased on September 24th, 2026
Customer photo from Allan
★★★★★
Allan✓Verified Buyer

“Seamless, no error codes, just plug n forget. The truck feels so much better, and since mine is getting up there in terms of mileage, that's when I decided I'm not waiting for the AFM system to fail. The AFM system doesn't really help whenever you need a little bit of power getting up a small grade, it would switch to V8 anyways. Plus the shudder you just feel in your bum whenever you're trying to accelerate is now gone.”

FlexDrive™ AFM/DFM Disabler
$84.95
Purchased on June 24th, 2026
Customer photo from Lee
★★★★★
Lee✓Verified Buyer

“As soon as I plugged it in I felt a difference in my truck, runs better. You don't feel the hard shifting from V8 to V4 and you can feel that you have more power behind the gas pedal. My truck only has 80,000 km and it's a 2016, but I heard if you don't chip it, around 200,000 you have major engine problems.”

FlexDrive™ AFM/DFM Disabler
$84.95
Purchased on August 13th, 2024
Customer photo from Nathan
★★★★★
Nathan✓Verified Buyer

“Works like it's supposed to! Immediate fix in my 2018 Chevy Silverado 1500 5.3L V8. Prevents the onboard computer from toggling the engine from V8 to V4, causing undue stress to the engine and making driving less enjoyable frankly. It's a true plug-and-play device that plugs into the diagnostic port under the dash and you're in business. Can't recommend enough.”

FlexDrive™ AFM/DFM Disabler
$84.95
Purchased on March 2nd, 2026
Customer photo from Johnny
★★★★★
Johnny✓Verified Buyer

“Works as it should. Does not drain the battery. Would buy again! If you are questioning buying this… buy it! You won't regret it.”

FlexDrive™ AFM/DFM Disabler
$84.95
Purchased on September 14th, 2026
Customer photo from Christian
★★★★★
Christian✓Verified Buyer

“Worked great on my 2008 Silverado 5.3, improved mpg from 9 mpg to 16 mpg and no more annoying DOD.”

FlexDrive™ AFM/DFM Disabler
$84.95
Purchased on September 23rd, 2026

Stop Worrying, Start Driving on All Eight

Replacing lifters doesn't solve the root cause. The system keeps switching and the countdown starts over.

The Problem

  • Shudder and drone on the highway
  • A lifter tick that won't go away
  • Repair quotes in the thousands
  • Repairs that only restart the countdown

The FlexDrive Fix

  • Full time V8 on every drive
  • Plugs into your OBD2 port in 10 seconds
  • No tuning, completely reversible
  • Backed by our satisfaction guarantee
Engine running in full V8 mode, all cylinders active Engine with AFM on, four cylinders shut off AFM On Full V8

All Eight Cylinders, Every Drive

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Why GM Owners Pick FlexDrive

A simple fix many owners and independent mechanics turn to, with no need to open up the engine.

Plug In and Go

No tools, no tuning software and no visit to the shop.

Made for GM

Works with 80+ GM trucks, SUVs and cars from 2007 to 2022.

Nothing Permanent

Unplug it whenever you want and your truck goes right back to stock.

$84.95, Not Thousands

A mechanical AFM delete can cost thousands of dollars and means taking the engine apart.

FlexDrive™ vs. Mechanical Delete Kits

FlexDrive AFM/DFM Disabler

FlexDrive

  • Installs in 10 seconds
  • No engine disassembly
  • Reversible whenever you want
  • $84.95, paid once
  • Backed by our satisfaction guarantee

Delete Kits

  • Engine has to be opened
  • Several days at the shop
  • Changes are permanent
  • Can cost thousands of dollars
  • Labor costs can't be refunded
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30-day money-back guarantee

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