What is a PCM unlock?

A PCM unlock removes the factory encryption from the Powertrain Control Module so professional tuning tools can read and write calibration data. On most 2015+ Dodge, Jeep, Chrysler, and RAM vehicles, unlocking is required before custom tuning can be performed.

Why do 2015+ Dodge, Jeep, and RAM vehicles require unlocking?

Starting in 2015, FCA implemented security protocols that restrict tuning access through the OBD port on many vehicles. Unlocking enables calibration access so changes to airflow, torque management, fueling, and other tables can be flashed safely.

Do I have to mail in my PCM?

Yes. The unlock process is performed on a bench and requires the PCM to be removed from the vehicle and shipped in for service. Once unlocked, the PCM can typically be read and written via OBD using supported tuning platforms.

How long does the PCM unlock process take?

Typical turnaround is 1–3 business days after the PCM is received, plus shipping time. Tracking is provided when the module ships back.

What vehicles commonly need a PCM unlock?

Most 2015+ Dodge, Jeep, Chrysler, and RAM vehicles with encrypted controllers require unlocking before tuning. Common examples include 2015+ Charger, Challenger, 300, Grand Cherokee, and RAM 1500. If you are unsure, provide your VIN and we can verify.

What controllers are supported for PCM unlocking?

Common encrypted FCA controllers include GPEC2A, GPEC3, GPEC5, and NGC. Compatibility can vary by year and model, so VIN verification is recommended if you are not sure which PCM your vehicle uses.

Is a PCM unlock safe?

Yes. Unlocking is designed to enable calibration access and does not change stock drivability by itself. The vehicle will operate normally on a stock calibration or a custom tune after unlocking.

Can I return the PCM to stock after it is unlocked?

Yes. An unlocked PCM can still run a stock calibration file. Unlocking enables access, but you can flash stock or custom files as needed using a supported tuning platform.

Will unlocking void my warranty?

Unlocking enables tuning access, and any calibration changes may affect manufacturer warranty coverage. If warranty is a concern, some customers keep their original PCM stock and use a spare PCM for modifications.

Do I still need HP Tuners credits after unlocking?

Yes. Unlocking enables access, but you still need the appropriate interface and licensing (credits) to read, license, and flash the vehicle with HP Tuners or other supported tools.

Can you tune my vehicle after unlocking?

Yes. We offer custom remote tuning for bolt-ons, camshaft upgrades, injector scaling, boost setups, and torque model optimization. Pairing an unlock with a custom calibration is the best way to improve performance and drivability.

Corvette Tuners & Programmers | HP Tuners & DiabloSport

Corvette Tuners and Programmers

Corvette Tuners and Programmers — Choose the Right Device for Your Build

Maximize the performance of your C5, C6, C7, or C8 Corvette with professional-grade tuners and programmers from N2 Speed. Whether you need full custom tuning access through HP Tuners or a handheld device with remote tune support from Diablosport, we carry the right tool for your Corvette and include custom tune support with every purchase.

Which Corvette Tuner Is Right for You?

Feature	HP Tuners MPVI3	Diablosport i3 Platinum	Diablosport Trinity 2
Custom Tune Support	✔ Full VCM Suite	✔ Remote Custom Tunes	✔ Remote Custom Tunes
PCM/TCM Unlock Capable	✔ Yes	✘ No	✘ No
Data Logging	✔ Advanced	✔ Basic	✔ Real-Time Gauges
Preloaded Tunes	✘ Custom Only	✔ Yes	✔ Yes
Touchscreen Display	✘ Laptop Required	✘ Button Interface	✔ 5" Touchscreen
Best For	Advanced builds, forced induction, PCM/TCM work	Bolt-on and cam builds	Bolt-on and cam builds + gauges

HP Tuners — Full Calibration Access

MPVI3 — latest generation with wireless connectivity, fastest read/write speeds, and universal vehicle support
MPVI2+ and MPVI2 — proven devices fully compatible with all LS and LT Corvette applications
Requires VCM Suite software (Windows laptop) for calibration editing
Required for PCM and TCM unlock services on 2017+ and C8 Corvettes

Diablosport — Handheld Convenience

inTune i3 Platinum — compact handheld programmer with preloaded performance tunes, custom tune loading, data logging, and DTC reading
Trinity 2 Platinum — 5-inch touchscreen tuner with real-time performance gauges, custom tune support, and vehicle diagnostics
Both devices support remote custom tuning — we build calibrations and you flash them from home

Corvette Compatibility

C5 Corvette (1997–2004) — LS1, LS6 — HP Tuners and Diablosport supported
C6 Corvette (2005–2013) — LS2, LS3, LS7, LS9 — HP Tuners and Diablosport supported
C7 Corvette (2014–2019) — LT1, LT4 — HP Tuners and Diablosport supported (PCM unlock may be required for 2017+)
C8 Corvette (2020–Present) — LT2 — HP Tuners supported (PCM/TCM unlock required)

Every Tuner Includes Custom Tune Support

When you purchase a tuning device from N2 Speed, you get access to our professional custom tuning services. We build calibrations specific to your Corvette's modifications — bolt-ons, camshafts, stroker builds, superchargers, or turbo kits — and provide free revisions until the tune is perfect.

Shop Corvette tuners and programmers now, or call (954) 406-8550 to discuss which device is right for your build.