Home / Services / GM tuning
Chevrolet · GMC · Cadillac · Other supported GM
GM tuning &
PCM services.
A custom tune, an engine-swap calibration, or help with a replacement controller. Start with what you need done—we’ll help you find the right service for your GM.
What do you need done?
Four starting points. Choose the job that sounds like yours.
Tune from home
Remote tuning
Keep the controller in your vehicle. Use compatible HP Tuners hardware to read, flash, and record logs while we build your calibration.
You send
Your stock file, vehicle details, and requested logs.
You receive
The initial tune plus three revision rounds within 30 days of receiving it. Our delays do not count against you. Additional revisions: 3 rounds for $75; extra rounds do not extend that period.
Already have compatible hardware? View calibration only →
Send us your controller
Mail-in tuning
Send your PCM or ECM to us for calibration. A practical route when your supported application can be handled without ongoing vehicle logs.
You send
Your controller and vehicle/modification details.
You receive
Your controller back with the purchased calibration installed.
The vehicle is unavailable while its controller is away.
Swaps & security-related programming
VATS & engine-swap services
Need VATS removal, or a calibration for an engine in a different vehicle? Choose the controller and the work your project actually needs.
You send
Controller information and details about the vehicle or swap.
You receive
The programming covered by your selected service. VATS removal alone is not a complete tune.
Replace a failed controller
PCM / ECM cloning
We copy the data from your original PCM or ECM to a matching replacement. Check with us first to make sure your modules are supported.
You send
Your original module and a matching replacement. Send us photos of both labels so we can check the match before you ship them.
You receive
A replacement module with the data copied from your original. We must be able to read the original data to complete the clone.
Not sure? Start with your vehicle.
Choose your model, then its generation. The existing vehicle categories help narrow the available services.
Silverado 1500 →Sierra 1500 →Silverado HD →Sierra HD →Camaro →Corvette →CTS-V →Tahoe / Suburban →Yukon / Yukon XL →Escalade / ESV →Other GM vehicle →I know my controller ↓
Category listings are a starting point; exact engine and controller support still matters.Don’t see your model? →
Remote or mail-in?
Both can deliver a custom calibration. The main difference is how we work with your vehicle—and whether your combination needs data-log review.
What to expect
Remote tuning
Mail-in tuning
Where is the controller?
Remote: Stays in your vehicle.
Mail-in: Shipped to PCM Tuners.
What do I need?
Remote: A compatible interface, required credits, and any required controller access.
Mail-in: The correct controller, vehicle details, and a completed service request.
How do logs fit in?
Remote: You record requested logs so we can review the calibration in the vehicle.
Mail-in: We program the controller using the vehicle and modification details you provide.
Which should I choose?
Remote: Often the better starting point for modified combinations needing log-based revisions.
Mail-in: Lowest-cost tuning option. Good for engine swaps and lightly modified vehicles with bolt-on mods.
Support, controller access, and the work included vary by application and service. Confirm the exact combination before ordering.
Have these details ready.
A few specifics help us point you to the right service.
01
Your vehicle
Year, make, model, engine, and transmission. For swaps, include the donor engine and controller information.
02
Your setup & goal
Current modifications, fuel, and what you need changed or resolved. Tell us about planned upgrades too.
03
Your existing equipment
Any HP Tuners device you own and known controller unlock status. Credits and access requirements are application-specific.
Let’s get you to the right service.
Send your vehicle details and what you’re trying to accomplish. If you have a controller on the bench, include a clear photo of its label.
Already know your controller? Start here.
Knowing the controller helps narrow the application, but doesn’t determine the service. Choose tuning, VATS removal, or cloning based on the work you need.