✅ 90-DAY MONEY BACK GUARANTEE
✅ 12-MONTH WARRANTY
✅ 24H SUPPORT
✅ FREE WORLDWIDE SHIPPING
✅ 90-DAY MONEY BACK GUARANTEE
✅ 12-MONTH WARRANTY
✅ 24H SUPPORT
✅ FREE WORLDWIDE SHIPPING
✅ 90-DAY MONEY BACK GUARANTEE
✅ 12-MONTH WARRANTY
✅ 24H SUPPORT
✅ FREE WORLDWIDE SHIPPING
✅ 90-DAY MONEY BACK GUARANTEE
✅ 12-MONTH WARRANTY
✅ 24H SUPPORT
✅ FREE WORLDWIDE SHIPPING
✅ 90-DAY MONEY BACK GUARANTEE
✅ 12-MONTH WARRANTY
✅ 24H SUPPORT
✅ FREE WORLDWIDE SHIPPING
✅ 90-DAY MONEY BACK GUARANTEE
✅ 12-MONTH WARRANTY
✅ 24H SUPPORT
✅ FREE WORLDWIDE SHIPPING
✅ 90-DAY MONEY BACK GUARANTEE
✅ 12-MONTH WARRANTY
✅ 24H SUPPORT
✅ FREE WORLDWIDE SHIPPING
✅ 90-DAY MONEY BACK GUARANTEE
✅ 12-MONTH WARRANTY
✅ 24H SUPPORT
✅ FREE WORLDWIDE SHIPPING
✅ 90-DAY MONEY BACK GUARANTEE
✅ 12-MONTH WARRANTY
✅ 24H SUPPORT
✅ FREE WORLDWIDE SHIPPING
✅ 90-DAY MONEY BACK GUARANTEE
✅ 12-MONTH WARRANTY
✅ 24H SUPPORT
✅ FREE WORLDWIDE SHIPPING
EirCore™ AFM/DFM Disabler – Keep Your V8 Running at Full Power
EirCore™ AFM/DFM Disabler – Keep Your V8 Running at Full Power
Stop AFM/DFM cylinder deactivation. Keep your V8 running at full power — every drive. Prevents $3,000–$8,000 lifter failures.
✓ Full V8 power, no cylinder shudder
✓ 60-second plug-and-play, no tools
✓ 100% reversible, dealer-safe
🔧 60-second plug-and-play install
💪 Full V8 power restored
🛡️ Prevents $3,000–$8,000 lifter failures
↩️ 100% reversible & dealer-safe
EirCore AFM/DFM Disabler
MOST
POPULAR
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EirCore™ AFM/DFM Disabler – Keep Your V8 Running at Full Power
❓ Will it fit my truck?
❓ Will it fit my truck?
Will it work on my truck?
EirCore™ fits 80+ GM V6/V8 models from 2007–2022 — Silverado, Sierra, Tahoe, Yukon, Suburban, Escalade, and more. Engines: 4.3L, 5.3L, 6.0L, 6.2L. Doesn't fit 10-speed transmissions or 2023+ models. Email us your year/model and we'll confirm fitment.
⚙️ Is this a tune or a delete?
⚙️ Is this a tune or a delete?
How is EirCore™ different from a tune?
EirCore™ is plug-and-play — no programming, no tuning, zero ECU changes. It sends a passive signal that prevents AFM/DFM activation. Unplug anytime and your truck returns to 100% factory settings instantly. A tune permanently modifies your ECU.
🛡️ What's your guarantee?
🛡️ What's your guarantee?
90-day money-back guarantee. If EirCore™ doesn't deliver — no shudder, no lifter stress, full V8 power — return it for a full refund within 90 days. Every unit is also covered by a 12-month warranty.
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Ordered
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Order Ready
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Delivered
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No more highway shudder on my 2019 Sierra. Cylinder deactivation used to kick in around 60 mph and the whole cab would buzz. Plugged EirCore™ into the OBD2 port, pressed go, and it has been smooth V8 ever since. Wish I had found this two years ago.
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Install took less time than my coffee. I am not a car person at all. Found the port under the dash, clicked it in, started the truck — done. My Tahoe finally stopped dropping to four cylinders and lurching. Zero tools, zero stress, instant throttle response.
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Cheap insurance for an expensive engine. A buddy paid almost six grand for a lifter and cam job. I pop EirCore™ out before any dealer visit so the truck reads bone-stock, then plug it back in after. No shudder, no lifter worries, no regrets.
Why Getting a DFM/AFM Disabler?
Built for GM truck owners who refuse to gamble with a $6,000 repair bill and laggy driving experience.
Install in 3 Easy Steps
No mechanic. No tools. No permanent changes.
EirCore™ vs. Delete Kit
Why plug-and-play wins over engine disassembly
| Feature | EirCore™ Disabler | Delete Kit |
|---|---|---|
| Install time | 60 seconds, plug-and-play | Hours in a shop |
| Tools required | None | Full tool set & lift |
| ECU reprogramming | None | Permanent tune |
| Reversible | Yes — unplug anytime | No |
| Dealer-safe | Reads 100% stock | Leaves a trace |
| Engine disassembly | None | Required |
| Typical cost | $89.99 | $1,500–$3,000+ |
Does It Fit Your Vehicle?
Compatible with 4.3L, 5.3L, 6.0L and 6.2L GM V6/V8 engines — fits 102+ models across Chevy, GMC, Cadillac, Buick, Pontiac, and more.
Chevrolet 29 models ▾
- Silverado 1500 (2007-2022)
- Silverado 2500HD (2007-2022)
- Silverado 3500HD (2007-2019)
- Tahoe (2007-2022)
- Suburban (2007-2022)
- Avalanche (2007-2013)
- Colorado (2015-2022)
- Express 1500/2500/3500 (2007-2022)
- Trailblazer (2007-2009)
- TrailBlazer SS (2006-2009)
- SSR (2006)
- Impala (2007-2014)
- Impala SS (2006-2009)
- Monte Carlo SS (2006-2007)
- Malibu Maxx SS (2006-2007)
- Equinox (2018-2022)
- Traverse (2009-2022)
- Caprice PPV (2011-2017)
- Camaro (2010-2022)
- Corvette (2008-2019)
- HHR SS (2008-2010)
- Astro (2007-2014)
- Blazer (2019-2022)
- C/K Pickup
- G-Series Van
- Express Cargo Van
- Express Passenger Van
- Silverado Classic (2007)
- Trailblazer EXT (2007-2008)
GMC 13 models ▾
- Sierra 1500 (2007-2022)
- Sierra 2500HD (2007-2022)
- Sierra 3500HD (2007-2019)
- Yukon (2007-2022)
- Yukon XL (2007-2022)
- Yukon Denali (2007-2022)
- Canyon (2015-2022)
- Envoy (2007-2009)
- Envoy XL (2007-2008)
- Savana 1500/2500/3500 (2007-2022)
- Acadia (2009-2022)
- Terrain (2018-2022)
- Sierra Classic (2007)
Cadillac 12 models ▾
- Escalade (2007-2022)
- Escalade ESV (2007-2022)
- Escalade EXT (2007-2013)
- CTS (2008-2019)
- CTS-V (2009-2019)
- STS (2008-2011)
- STS-V (2006-2009)
- SRX (2010-2016)
- DTS (2006-2011)
- DeVille (2006)
- ATS (2013-2019)
- XTS (2013-2019)
Buick 7 models ▾
- Rainier (2006-2007)
- Rendezvous (2006-2007)
- Terraza (2006-2007)
- LaCrosse (2008-2016)
- Lucerne (2006-2011)
- Enclave (2008-2022)
- Regal GS (2014-2017)
Pontiac 9 models ▾
- G6 GXP (2006-2009)
- Grand Prix GXP (2005-2008)
- Torrent (2006-2009)
- Montana SV6 (2006-2009)
- Solstice (2006-2010)
- GTO (2005-2006)
- Trans Am (2008)
- G8 (2008-2009)
- G8 GXP (2009)
Saab 8 models ▾
- 9-7X (2005-2009)
- 9-7X Aero (2008-2009)
- 9-3 (2008-2012)
- 9-3 Aero (2008-2011)
- 9-3 Sportcombi (2006-2011)
- 9-3X (2010-2011)
- 9-5 (2010-2011)
- 9-5 Aero (2010-2011)
Saturn 8 models ▾
- Vue (2008-2010)
- Outlook (2007-2010)
- Aura (2007-2010)
- Sky (2007-2010)
- Sky Redline (2007-2009)
- Relay (2005-2007)
- L300 (2005)
- ION Red Line (2004-2007)
Isuzu 8 models ▾
- Ascender (2006-2008)
- i-280 (2006)
- i-290 (2007-2008)
- i-350 (2006)
- i-370 (2007-2008)
- Ascender 5-Passenger (2006-2008)
- Ascender 7-Passenger (2006-2008)
- Ascender Limited (2008)
Suzuki 8 models ▾
- XL7 (2007-2009)
- XL-7 Limited (2007-2009)
- Equator (2009-2012)
- Equator Crew Cab (2009-2012)
- Equator Extended Cab (2009-2012)
- Equator RMZ-4 (2009-2012)
- Equator Sport (2009-2012)
- Equator RMZ-4 Sport (2009-2012)
Not sure if your vehicle is compatible?
Contact us with your year & model — we'll confirm fitment within 24 hours.
One Module, Full Protection.
The switch that every GM truck driver needs.
Plug-In & Drive
Installs in seconds. No tools, no apps, no programming — just plug into the OBD2 port and go.
GM Compatible
Fits Silverado, Sierra, Tahoe, Yukon, Suburban, Escalade & 80+ more GM V6/V8 trucks.
Full Cylinder Power
Locks engine in full V8 mode. Restores instant throttle response — no more shudder, no more lifter stress.
Customer Reviews
Verified GM truck owners — real results
Ready to Protect Your V8?
Join 8,954+ GM truck owners who keep their engine running at full power — every drive, every mile.
$89.99 now — or $3,000–$8,000 later. Your call.
⚠️ NOT FOR SALE OR USE IN CALIFORNIA. Compliant with EPA Tampering Policy (Nov 23, 2020).