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  • Achieve maximum power without sacrificing drivability or reliability by optimizing the engine's air/fuel ratios, timing, boost pressure, and more.
  • We have had ample time with Cali T's to optimize our tune on our Dynojet for many different variables. On a completely stock California T, there is significant power waiting to be had with just a tune - and even more when paired with our exhaust system.

Fabspeed California T Fabspeed ECU Tune


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Product Details:

Achieve maximum power gains without sacrificing drivability or reliability. Maps are available for completely stock cars and modded alike.                                                   

Increase the power and drivability by optimizing the ECU. We've had ample time with California T's on our in-house Dynojet to unlock extra power on both stock vehicles and optimize performance with Fabspeed exhaust components. Once we receive your ECU, our tuner bench flashes it with the upgraded ECU map and we return it to you for easy reinstallation; no modifications to the vehicle are necessary.     

POWER GAINS - Stock Hardware

  • Stock = 498 WHP / 470 TQ
  • Tuned = 558 WHP / 567 TQ
  • Maxmium gains of over 70 whp and 100 ft-lbs of torque


  • This is not a physical/shipped product.  This upgrade requires you to send us your ECU for re-programming. You will be emailed a download link with detailed instructions after adding this to your cart and checking out.
  • You must fill out and include a copy of the ECU Information form along with your ECU upon sending it in. Please contact us if you need to send the form in any other manner.
  • Fabspeed Motorsport saves your stock/factory ECU settings so that you can revert your vehicle back to stock settings at any time.


Shipping costs for sending an ECU to Fabspeed is the responsibility of the purchaser.  The ECU will be tuned within 24-48 hours of receiving it and Fabspeed will then ship back the ECU using whatever method it was shipped in with.  (For example: If you send in your ECU via Ground shipping, we will ship it back via Ground.  If you ship it via Overnight, we will ship it back via Overnight.)

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