OTS Tune vs. Custom Tune: What’s the Difference?

We are proud to offer support for whatever your build complexity. Please read below about our options

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An OTS tune is a pre-built calibration designed for specific vehicle models, engine setups, and common bolt-on modifications. It’s developed using extensive dyno testing and real-world data to safely increase power, improve throttle response, and enhance drivability—all without the need for custom tuning.

OTS tunes are ideal for enthusiasts running basic upgrades like intakes, downpipes, or exhausts, and want a proven, reliable performance bump that’s ready to go.

Key Benefits:

  • Quick, plug-and-play solution

  • Designed for common bolt-ons and fuel types

  • Affordable and easy to install

  • Backed by proven data

Off-The-Shelf (OTS) Tune:

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A fully custom tune is tailored specifically to your exact vehicle, modifications, driving style, and performance goals. Whether you’re running upgraded turbos, built internals, alternative fuels (E85, meth injection, etc.), or chasing max power at the track—a custom tune ensures every parameter is dialed in for optimal performance and safety.

Custom tuning often involves data logging, revisions, and fine-tuning on the dyno or via remote sessions to extract every bit of power while maintaining reliability.

Key Benefits:

  • Built specifically for your car and setup

  • Ideal for complex or high-power builds

  • Offers maximum performance and drivability

  • Includes detailed datalog review and revision support

Custom Tune:

Which One Is Right for You?
If you're lightly modified and looking for a safe, noticeable gain—an OTS tune is a solid starting point. But if you're chasing every last horsepower, have unique mods, or want the tune perfectly matched to your car’s behavior—a custom tune is the way to go.

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Have you added bolt on upgrades to your car and need a custom tune to maximize your gains? Ratified Motorsport has an extensive library of “Off the Shelf” tunes that have been meticulously prepared, tested and implemented and we are proud to be able to offer them to you!

OTS TUNES
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Have you modified your vehicle beyond full bolt on components or pushed your car beyond the standard upgrade path? Ratified Motorsport is proud to offer customized tuning services via email or in house dyno tuning.

CUSTOM TUNING