GM AFM DFM Disabler 2005-2020 w/ OBD2 16 Pin Splitter Adapter

$119.80
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Details

What Comes in This Combo

This bundle joins a GM AFM DFM disabler with a 16 pin OBD2 dual female adapter, so one truck or SUV gains all cylinder operation and a spare diagnostic socket at the same time. The two pieces share a single under-dash port yet handle separate jobs.

Each AFM DFM Disabler module seats in the stock OBD-II jack and shuts off Active Fuel Management and Dynamic Fuel Management without a flash or a splice. The 4-cylinder buzz stops, power stays on every cylinder, and pulling the plug returns the factory tune with nothing left behind.

The 16-pin OBD2 adapter splits one male J1962 plug into two female J1962 plugs inside a small PVC shell. At 1.6 x 1.6 x 0.4 inches and 1.94 oz, it hugs the port and opens a second bay for a scanner or monitor right beside the disabler.

Supported Years and Models

Component Fits Key Feature
AFM DFM Disabler GM V6 or V8 with AFM or DFM, 2005-2020 Plug-and-play OBD-II, no tune
OBD2 16 Pin Splitter Adapter Any vehicle with a standard 16 pin OBD2 J1962 port 1 male to 2 female, PVC, 1.94 oz

Shop 2005-2020 GM AFM DFM Disabler with OBD2 Splitter Adapter Now!
Shipping Details

Ontario CA / Springdale OH / Newark NJ
Package List
  • 1 x AFM Disabler
  • 1 x EGR Performance OBD2 splitter, 16-pin, one male to two female adapter
  • No installation instructions are included
Delivery Time

2-5 working days inland in the United States
Attention
Legal Disclaimer EGR DPF Delete Offroad Use Only

LEGAL DISCLAIMER

This product may NEVER be installed on a vehicle registered for highway or public street use. By installing this product onto your vehicle, you assume all risk and liability associated with its use. It is your responsibility to make sure your vehicle complies with all federal, state, and local emissions laws.

Federal and many state and local laws prohibit the removal, modification or rendering inoperative of any part of the design affecting emissions or safety on motor vehicles used on a public street or highway. Violation may result in a fine of up to $32,500 per vehicle (or possibly higher depending on changes in the law). All civil penalties and fines for removing your vehicle's emissions equipment are the sole responsibility of the end user.

No other applications besides off-road competition racing use are intended or implied. Depending on where you live, additional restrictions may apply. Check all applicable laws before installing or using.

Not available for sale or use in the state of California, Colorado and Arizona.

Product details

Core Advantages

  • Disable AFM DFM without a tune: your V8 or V6 keeps making full power, and the 4-cylinder shudder is gone.
  • Pure plug-and-play: seats in OBD-II, no wires, no software, and comes out clean when removed.
  • Two-way OBD2 split: powers a pair of 16-pin devices off the single factory port.
  • Tiny PVC body: 1.6 x 1.6 x 0.4 inches, 1.94 oz, rides right on the connector.

Ideal For

  • Owners of GM trucks and SUVs who want the engine on all cylinders every time they drive.
  • Anyone done with AFM DFM bucking, lag, and the drop to four cylinders under throttle.
  • Techs who need a code reader and a second 16-pin gadget live on one OBD-II jack.
  • Home mechanics after a fix they can undo with no tune or ECU rewrite.

Technical Specifications

  • AFM DFM Disabler: GM V6 or V8 with AFM or DFM, 2005-2020, plug-and-play OBD-II, 12V.
  • OBD2 Splitter Adapter: one male to two female 16-pin J1962, PVC case, 1.6 x 1.6 x 0.4 inch, 1.94 oz.
  • Pass-through pins: 2, 4, 5, 6, 7, 10, 14, 15, 16 for standard OBD2 protocols.
  • Material: PVC shell, small and light for cramped under-dash spots.
  • Warranty: 1-year limited warranty against manufacturing defects.

Why Pick This GM AFM DFM Set

Pick this EGR Performance set when you want constant full cylinder power plus a tidy OBD-II split from one purchase. The disabler blocks the 4-cylinder mode on your GM engine while the adapter runs a scan tool and a tracker or other 16-pin OBD2 kit side by side without blocking the socket.

What Is in the Box

  • 1 x AFM DFM Disabler module for GM V6 or V8 engines, 2005-2020.
  • 1 x OBD2 16-pin one male to two female adapter in a PVC shell.

Confirm Fitment for Your GM V8 or V6

  • Chevrolet: Silverado 1500, Tahoe, Suburban, Avalanche, Camaro, Corvette, SS (2005-2020 with AFM or DFM)
  • GMC: Sierra 1500, Yukon, Yukon Denali, Yukon XL (2005-2020 with AFM or DFM)
  • Cadillac: Escalade, CTS, SRX, XTS (2005-2020 with AFM or DFM)
  • Buick: Enclave, LaCrosse (2005-2018 with AFM)
  • Pontiac: G8, Grand Prix GXP (2005-2010 with AFM)

The 16-pin OBD2 adapter here clips onto any standard 16-pin OBD2 J1962 port. The compact PVC piece serves gas or diesel OBD2 vehicles, though the disabler stays GM-exclusive.

Round Out the Build on a GM V8 or V6

With the disabler in place, your GM truck or SUV runs on every cylinder each time you drive. Add a few supporting parts and the 4-cylinder drop stays gone for good.

GM V8 V6 Parts Worth Adding

  • 5.3 Chevy Engine Performance Parts: browse our 5.3 Chevy Engine Performance Parts for cam and intake support that lets a 5.3 or 6.2 stay in full cylinder mode once Active Fuel Management and Dynamic Fuel Management are shut off on a GM V8 or V6.
  • LS Oil Catch Can Routing: proper LS Oil Catch Can Routing catches blow-by vapor before it coats the intake, keeping a 5.3 or 6.2 breathing clean after the 4-cylinder drop is gone.
  • 5.3 EGR Block Off Plate: seal the exhaust side with a 5.3 EGR Block Off Plate on an off-road or competition GM V8 or V6 so the engine holds full cylinder mode.

Shop 2005-2020 GM AFM DFM Disabler with OBD2 Splitter Adapter Now!

  1. Dispatch Time: Orders will be shipped within 24 hours after successful payment.
  2. Delivery Time: 2-5 business days after dispatch (delivery speed depends on proximity to warehouse location).
  3. Return Window:7 days for unsatisfactory items45 days for quality-related issues
  4. Refund Processing: Refunds will be processed back to your original payment method within 2-4 business days after receiving the automated refund confirmation email (subject to bank verification).

Can I use this AFM disabler on a GMC Acadia or Chevy Traverse?

No. The unit targets full-size GM V8 or V6 trucks and SUVs that left the factory with AFM or DFM. It is not built for smaller crossovers like the GMC Acadia, Chevy Traverse, Buick Enclave, or Cadillac XT5, where forcing full cylinder mode can bring on RPM flutter and rough running.

What is the best way to verify fitment before I buy?

Email your 17-digit VIN to service@egrperformance.com ahead of order. We check the V6 or V8 and its fuel management setup and reply within a day so you get the correct part for a GM V8 or V6.

Does the 16 pin adapter work on a non-GM vehicle?

For the adapter, yes. It slides onto any standard 16-pin OBD2 J1962 port, gas or diesel. The disabler remains GM-specific, so you get a complete fix on GM and a simple port doubler everywhere else.

Can the adapter run two devices together?

Yes. The 16-pin OBD2 adapter is built to feed up to two compatible 16-pin OBD2 units from one vehicle port. Both female outlets carry the standard OBD2 pins shown in the specs.

Will the adapter pass standard OBD2 protocols?

Yes. It uses straight pass-through wiring on the listed pins and supports standard OBD2 protocols. It is a diagnostic splitter only and never alters calibration.

Is the disabler plug and play without a tune?

Yes. Seat it in the OBD-II jack, and it switches off Active Fuel Management and Dynamic Fuel Management with no wiring or software. There is no ECU footprint, so remove it, and a 5.3 or 6.2 goes back to stock.

Could the disabler throw a check engine light?

No. The module is passive and does not touch the ECU, so a supported GM V8 or V6 running in full cylinder mode should not log a trouble code. If a light shows up, check the OBD-II fuse and reseat the connector.

What is the OBD2 splitter adapter made of?

The shell is molded PVC. At 1.6 x 1.6 x 0.4 inches and 1.94 oz, it is small and light, so it tucks by the port without blocking the footwell or trim.

Is this combo street legal?

This kit is intended for off-road and competition use only. AFM DFM disablers fall in a gray compliance zone, so review local and state rules before any public road use on a GM V8 or V6.

What warranty ships with the combo?

EGR Performance covers the OBD2 splitter adapter with a 1-year manufacturer warranty against defects. For disabler fitment, warranty, or support, email service@egrperformance.com with your VIN and order number.

Step-by-Step Installation

You can set up the disabler and the dual female adapter in a few minutes using only the factory OBD-II jack under the dash, with no cutting, coding, or special tools. A 5.3 or 6.2 GM V8 or V6 stays in full cylinder mode the moment both parts seat.

Set Up the AFM DFM Disabler

  1. Shut the engine off, take the key, and give the electronics 30 seconds to sleep.
  2. Locate the 16-pin OBD-II jack on the driver's side, below the dash by the column.
  3. Push the disabler in until it locks and the blue LED holds steady.
  4. Crank up and drive. Active Fuel Management and Dynamic Fuel Management stay off on your 5.3 or 6.2 while the unit is in.

Mount the 16 Pin Dual Female Adapter

  1. Insert the adapter male end into the vehicle OBD-II jack or stack it onto the disabler.
  2. Plug up to two 16 pin OBD2 items into the female outlets.
  3. Tuck the light PVC body away from pedals and trim for a neat install.

Pull the disabler before a dealer visit so the OBD-II side reads stock. Remove it if the vehicle sits longer than three days to prevent a small battery draw.

This kit is intended for off-road and competition use only. Check local rules before use on public roads.