Performance ECU software upgrade improves horsepower, torque, and driving characteristics by reprogramming various sensor inputs, air/fuel ratios, and boost pressure (if applicable).
NOTE: 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.
SHIPPING DETAILS: Shipping costs for sending an ECU to Fabspeed are 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.)
- Fits all Porsche 991 GT3 vehicles, 2015+
- 991 GT3 3.8L / 92 octane fuel (Power numbers will be greater with 93 or 100 octane)
- Stock = 475 HP / 325 TQ
- EVOMSit Software Only = 492HP / 336TQ
- Software + Valved Exhaust = 500 HP / 344 TQ
- Software + Valved Exhaust + High Flow Catted Headers = 508 HP /352 TQ
- Left foot braking is optional
- No issues with cat monitors and passing emissions with 200 cell or higher cats
- Fabspeed Motorsport saves your stock/factory ECU settings so that you can revert your vehicle back to stock settings at any time