EFC
GPEC2 / GPEC2A PCM unlock file service

Chrysler 300 PCM Unlock Service

The Chrysler 300 and 300C share their powertrain platform with the Charger, so the same GPEC2 / GPEC2A Continental controllers appear across 3.6L Pentastar, 5.7L HEMI, and 6.4L SRT applications. If you can read your 300 PCM with a supported tool, upload that original file and we process it for supported tuning preparation, then return it for you to write back.

If you cannot read the unit, mail in the PCM and we service it directly. This service is for shops, tuners, mobile programmers, and DIY owners preparing a supported Chrysler 300 for the tuning workflow, where legally permitted.

Upload ECU FileMail In My PCMCheck Compatibility
  • Nationwide file service
  • Mail-in PCM option
  • Shop / tuner friendly
  • Secure file upload
  • Fast turnaround available
  • Legal-use only
Chrysler 300 sedan for GPEC2A PCM unlock file service
Detail

Chrysler 300 / 300C controller coverage

Because the 300 is mechanically close to the Charger, support tracks closely with the Dodge applications: many 3.6L Pentastar, 5.7L HEMI, and 6.4L SRT cars carry supported GPEC controllers. Still, the controller fitted can change across model years, so we confirm support from the PCM label, part number, ECU family, and the read file rather than year and trim alone.

Send a clear PCM label photo, VIN, part number, and the tool plus read method you used. We verify the GPEC family and read completeness before processing and tell you up front if a file cannot be processed cleanly.

No read/write tool? You can mail in your PCM and we service the physical unit directly, then ship it back.

01 · Overview

What this service does

Upload your original ECU read file and let ECU Flash Cartel process it for supported GPEC tuning preparation. Once complete, you can write the returned file back using your compatible read/write tool.

We support shops, mobile programmers, tuners, and DIY customers nationwide. If you can read the file, you can upload it. If you cannot read it, mail us the PCM.

  1. 01We process supported GPEC2 / GPEC2A ECU read files for tuning access and preparation.
  2. 02You upload the original read file.
  3. 03We return the processed file.
  4. 04You write the file back with your own supported tool.
  5. 05No tool or unreadable file? Mail in the PCM and we service it directly.
  6. 06For tuning preparation, diagnostics, repair, motorsport, and off-road use where legally permitted.
02 · Two ways to order

Choose your service option

Upload Your ECU File — Instant

Best for tuners, performance shops, mobile programmers, and customers with a supported read/write tool. Read your original ECU file, upload it, pay online ($150 GPEC2/2A · $100 IMMO-OFF), and get the processed file back in seconds.

  1. 1Read the original PCM/ECM file.
  2. 2Upload the file and PCM label photo.
  3. 3Pay online.
  4. 4We process the file.
  5. 5Download or receive the processed file.
  6. 6Write the file back using your supported tool.
Upload ECU File

Mail In Your PCM — $250

Best for customers who do not have a tuning/programming tool or cannot read the PCM. Pay $250, ship the PCM to ECU Flash Cartel, and we service the physical module and ship it back.

  1. 1Remove the PCM.
  2. 2Ship it to ECU Flash Cartel.
  3. 3We unlock / service the PCM.
  4. 4We ship it back.
  5. 5Install it and continue the tuning workflow where legally permitted.
Start Mail-In Service
03 · ECU families

Supported ECU families

GPEC2GPEC2AGPEC3GPEC4GPEC4LMGPEC5

Our main focus for this service page is GPEC2 and GPEC2A. Other GPEC families may be supported depending on tool read type, ECU software, file format, and service requested.

04 · Vehicles

Supported vehicles

Dodge

  • Charger
  • Challenger
  • Durango
  • Journey
  • Dart
  • Hellcat applications
  • Scat Pack / 392 applications

Jeep

  • Grand Cherokee
  • Grand Cherokee SRT
  • Trackhawk
  • Wrangler JK
  • Wrangler JL
  • Cherokee
  • Compass
  • Patriot

Chrysler

  • 300 / 300C
  • 200

Ram

  • Ram 1500
  • HEMI truck applications
  • Select Ram applications depending on ECU family
Always verify by PCM label, part number, ECU family, and read file. Year/make/model alone is not enough to guarantee support.
05 · Engines

Engines covered

2.0L2.4L Tigershark3.0L3.2L Pentastar3.6L Pentastar5.7L HEMI6.2L Hellcat6.4L HEMI / 392
07 · Before you order

What you need before ordering

Do not know if your PCM is GPEC2, GPEC2A, GPEC3, GPEC4, GPEC4LM, or GPEC5? Upload a clear photo of the PCM label with your vehicle year, make, model, engine, VIN, and tool used to read the file.

  • Original ECU/PCM read file
  • PCM label photo
  • Vehicle year, make, model, engine
  • VIN
  • PCM part number
  • Tool used to read the file
  • Read method: OBD, bench, or boot
  • Description of what you need
  • Battery support recommended when writing back

Year, make, and model alone are not enough to guarantee support. ECU family, PCM part number, software version, file format, and read method all matter.

Have everything ready? Upload your read and pay online, or mail in the PCM if you cannot read the file.

Upload ECU FileMail In My PCMCheck Compatibility
09 · Pricing

Pricing

Instant GPEC2 / GPEC2A file unlock

$150

Upload your read — file back in seconds

Get started

Instant IMMO-OFF (any supported ECU)

$100

Upload your read — file back in seconds

Get started

Mail-in PCM unlock (send your module)

$250

No tool needed — we service the physical PCM

Get started

Same-day priority file service

Starting at $299

Where available

Get started

Mail-in PCM clone

$250

Ship original + donor — VIN / immo / config cloned

Get started

Shop / tuner bulk packs

5–25% off

Pre-buy 5 / 10 / 25 files — redeem 1 credit each

Get started

Final price depends on ECU family, file type, service requested, and whether recovery or cloning is needed.

10 · FAQ

Frequently asked questions

Is the Chrysler 300 SRT supported?
Many 6.4L SRT 300 applications are supported where the PCM is a covered GPEC family. Confirm by label and read.
Do you support the 3.6L Pentastar 300?
Often yes, where the controller is a supported GPEC family. Send your read and PCM label to confirm.
Can I mail in my 300 PCM?
Yes. Remove and ship the PCM if you cannot read it, and we return it after service.
Is this the same as a Charger PCM unlock?
The platforms are closely related, so the process is the same. See our Dodge Charger PCM Unlock page for the sister application.
Do you provide emissions delete files?
No. We do not provide emissions defeat, delete files, or services intended to bypass emissions laws. Our service is for tuning preparation, diagnostics, repair, motorsport, and off-road use where legally permitted.
Is this the same as a tune?
No. This is a PCM unlock and file-preparation service, not a tuning file. It prepares supported ECUs for the tuning workflow you run with your own tools, where legally permitted.

Legal use only

For tuning preparation, diagnostics, repair, motorsport, and off-road use where legally permitted.

We do not provide emissions defeat, delete files, or services intended to bypass emissions laws. Customer is responsible for confirming legal use in their location and application.

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