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Horsepower Technologies

Retune / Re-Tuning Service

Retune / Re-Tuning Service

Regular price $150.00 USD
Regular price Sale price $150.00 USD
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Need adjustments after changes to your setup? This service is for existing customers who’ve already received a full custom tune and need updates due to new mods, different fuel, or drivability tweaks.

What’s Included:

  • Calibration updates for existing customers

    Support for changes such as:

    • New fuel type (e.g. pump gas to E85)

    • Upgraded parts (injectors, MAF, intake, etc.)

    • Drivability improvements or corrections

     

  • Data review and fine-tuning (dyno or street-based depending on service type)

Requirements:

  • Must be an existing tuning customer

  • Vehicle must still be using the same ECU and platform as originally tuned

  • Any major changes (e.g. added boost, nitrous, or meth injection) will require purchasing the Boost/Nitrous/Meth Add-On separately

  • Appointment required

Common Scenarios for Retuning:

  • Switching fuel type (91 > 93, 93 > E85)

  • Upgraded injectors or fuel system

  • Intake/exhaust changes

  • Transmission changes

  • General performance adjustments

Important Notes:

  • This is not for completely new builds or engine swaps — please book a full EFI Engine Tuning Service for that

  • All vehicles must be mechanically sound and ready for tuning

  • Additional dyno time or labor may result in extra charges if significant changes are found outside of the original scope

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