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Rated 4.91/5 based on +34,382 Ratings
“Plugged it into my 2015 Silverado 5.3 and the shudder I've had for two years was gone immediately. Should've done this before I spent $200 on a mechanic telling me my lifters were starting to go.”
“Was skeptical at first, I thought it was just another OBD gadget. My buddy's a Chevy tech and said this was the one he actually uses on his own trucks. Three months in. No codes, no issues, V8 locked 24/7.”
“Picked up a used Sierra with 97k miles. Every forum said disable AFM immediately. Found Vitaxe, plugged it in, 10 seconds. Truck runs smoother and I'm not stressing about lifters anymore.”
“"Three months, no issues whatsoever. No codes. No battery drain. Truck runs the way it should've from the factory. Just bought a second one for my dad's Tahoe."”
“"I tow a 24-foot boat every weekend. The V4 drop under load was driving me absolutely insane. Plugged Vitaxe in and just like that, full V8 power on every hill. Should've done this years ago."”
“"My mechanic quoted my buddy $6,800 for lifter replacement on his Tahoe. Found Vitaxe, plugged it into my Silverado the same day. Learned from his mistake. Cheapest insurance I've ever bought."”
2025 upgraded version, fits 80+ GM models across Chevy, GMC, Cadillac, Buick, Pontiac, Holden, and more.
Not sure if your vehicle is compatible?
Contact us with your year and model, we'll confirm for free.
GM's Active Fuel Management system constantly cycles your engine between V8 and V4 mode. Every cycle stresses your lifters, until they fail.
The constant switching between V8 and V4 mode wears down your lifters prematurely. LT engines are notorious for this, it's not a matter of if, but when.
Feel that rough vibration when your truck shifts to 4-cylinder mode? That shudder isn't normal driving, it's your engine under stress every single time it cycles down.
When lifters fail, you're looking at a full engine teardown or replacement. Truck owners pay thousands, or junk the engine entirely for $300 at a salvage yard.
$89.95
Cheap insurance vs. a $5,000+ engine replacement
Plug it in. Blue light blinks. You're protected. That's it.
Located under your dashboard on the driver's side. It's a standard 16-pin port, every GM truck and SUV has one.
Line it up with the port and push it in. No wiring, no programming, no professional skills needed.
Takes 10 secondsThe Blue LED blinks to confirm it's active. Your engine is now locked in full-cylinder V8 mode, no more V4 drops, no more shudder, no more lifter stress.
Keep it plugged in and forget about it. Your V8 stays a V8, on hills, on highways, everywhere. Unplug anytime to return to factory settings instantly.
Same protection. A fraction of the cost and hassle.
Vitaxe™
~$89.95
One-time cost
Delete Kits
$1,500–$3,000+
Parts + labor
The simplest way to protect your GM V6/V8 engine from AFM/DFM damage.
Locks your engine in full-cylinder mode at all times. No more random V4 drops on hills, highways, or at idle. All 8 cylinders firing, always.
Stops the constant cylinder cycling that destroys lifters on LT engines. Prolong your engine's life, or avoid catastrophic failure completely.
Never touches your factory computer programming. Unplug it anytime to return to stock settings instantly. No trace, no risk.
Eliminates the shudder and rough vibration caused by cylinder deactivation. Enjoy consistent acceleration and a fuller exhaust note.
Works with Silverado, Sierra, Tahoe, Yukon, Suburban, Escalade, Camaro, Corvette, and dozens more GM V6/V8 models from 2004–2022.
"Plugged it into my 2015 Silverado 5.3 and the shudder I've been dealing with for two years was gone immediately. Should've bought this before I spent $200 on a mechanic telling me my lifters were starting to go. Best $89 I've ever spent on this truck."
Mike T.
"I was skeptical because of how cheap it is compared to a full AFM delete, but it works exactly like they say. Blue light came on, truck stayed in V8 going downhill where it always used to drop to V4. My buddy saw it and ordered one the same night."
Carlos R.
"I bought a used Sierra with 97k miles and every forum said to disable the AFM before the lifters go. This took me literally 10 seconds to install and now I don't have to worry about a $4,000 repair bill. Wish every truck mod was this easy."
Jason W.
"Runs smoother, sounds better, and I don't get that annoying V4 drop when I'm cruising anymore. I've had it plugged in for three months with zero issues. Already bought a second one for my dad's Tahoe."
Danny M.
Everything you need to know before you buy.
Absolutely not. The Vitaxe™ disabler never changes your original ECU programming. It's 100% safe for your vehicle. Simply unplug it and your truck returns to factory default settings instantly. No trace, no changes.
No tools and no mechanic needed. Find your OBD-II port under the dashboard, plug the device in, and wait for the blue light to blink. The entire install takes about 10 seconds.
It keeps your engine running in full V6/V8 mode at all times by disabling the AFM/DFM cylinder deactivation system. This prevents the constant V8-to-V4 cycling that causes lifter wear, engine shudder, and rough acceleration. You get full power, smoother driving, and long-term engine protection.
The 2025 upgraded version fits most GM V6/V8 vehicles with AFM or DFM, including Silverado, Sierra, Tahoe, Yukon, Suburban, Escalade, Camaro, Corvette, Colorado, Canyon, and many Buick, Cadillac, and Pontiac models from 2004–2022. Check the compatibility list above or contact us with your year and model.
Yes, keep it plugged into the OBD-II port to maintain full-cylinder mode. It sips very little power from your vehicle. Think of it as set-it-and-forget-it protection.
We offer a 100% satisfaction guarantee. If you have any quality issues or aren't happy with the product, contact us anytime for a full refund or free exchange. No hassle, no questions.
Join 8,000+ GM truck owners who plugged in and locked their V8. Free shipping, 30-day guarantee. No risk.
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