Back to Stock Service – Restore Your Vehicle to Factory Settings

If you’ve previously tuned your vehicle and want to return it to factory condition, our Back to Stock Service makes it easy and hassle-free.

Whether you used our Ship-Out Method, CTZ Flasher, or a spare ECU, we can help you go completely back to stock — restoring your car’s original calibration, drivability, and reliability.
 

How It Works

• Option 1 – Cable Method:
  We ship you our programming cable with full instructions to restore your ECU back to the original stock file. Plug it in, follow the guide, and you’re done.

• Option 2 – ECU Exchange:
  We send you a factory-programmed ECU that’s ready to install. Perfect for customers who used a spare ECU and now want to remove the immobilizer (IMMO) light or switch back to their original setup.
   

Perfect For

• Customers switching back from a performance tune

• Vehicles being sold, traded-in, or inspected

• Ship-Out ECU customers who want to clear IMMO or VIN mismatch lights

• Anyone needing a clean OEM re-flash for diagnostics or emissions
   

What’s Included

• OEM stock calibration for your specific VIN

• Optional programming cable (loan or purchase)

• Step-by-step instructions and remote support

• Optional ECU exchange program
   

Bring your vehicle back to its original stock condition quickly, safely, and with full Custom Tunez support.