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Softronic ECU Tune Porsche 991.1 GT3 / GT3 RS

Price
$1,395.00
Currently Backordered - You can still place your order and we'll ship your order as soon as the product is back in stock!

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Installation Services

Don’t worry about the hassle — let our expert team at Forza Motorworks handle the installation for you. Our professional installation ensures everything fits and operates exactly as intended, giving you clean, factory-quality results, proper wiring or mounting, and avoiding the risks of DIY mistakes. You’ll save time, avoid frustration, and get peace of mind knowing the job is done right the first time. Contact us to learn about our installation services and enjoy a seamless upgrade from day one.

FAQ

Shipping Information
For items that are in stock, purchases made after 9am EST will be usually be shipped out in the next 1-2 business days. Please inquire to confirm lead times if you have specific time constraints. Orders will be sent via signature required at our discretion unless otherwise requested.

International Shipping
Any and all customs duties, taxes, import fees, and/or tariffs assessed in connection with the purchase shall be the sole responsibility of the customer/end user.

Return Policy
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. To be eligible for a return, your item must be in the same condition that you received it, unused and in its original packaging. All returns are subject to a restocking fee based on item and package condition. Buyer is responsible for paying for return shipping costs. If you need a return label, we will email you a return label and deduct cost from refund. Original shipping costs are not refundable. Special order items are not eligible for return.

Cancellation Policy
In order to cancel your order you must email within 24 hours of placing your order or before your order has shipped, whichever occurs first. Special order items are not eligible for cancelation.

Exchange Policy
We have a 30-day exchange policy, which means you have 30 days after receiving your item to request an exchange. To be eligible for an exchange, your item must be brand new in box. Buyer is responsible for paying all shipping costs to exchange product.

Product Description

Unlock additional performance from your Porsche 991.1 GT3 or GT3 RS with Softronic Performance ECU Software. Developed specifically for Porsche's naturally aspirated flat-six engines, this ECU calibration optimizes engine management to increase horsepower, torque, and overall engine responsiveness.

For the 991.1 GT3 3.8L, Softronic advertises an increase from 475 bhp to 515 bhp, delivering an additional 40 horsepower. Peak torque increases from 324 lb-ft to 354 lb-ft, representing a gain of 30 lb-ft.

For the 991.1 GT3 RS 4.0L, Softronic advertises an increase from 500 bhp to 530 bhp, delivering an additional 30 horsepower. Peak torque increases from 339 lb-ft to 363 lb-ft, representing a gain of 24 lb-ft.

Designed to complement the high-revving character of Porsche's GT3 engines, Softronic Performance Software refines engine calibration to provide stronger acceleration, improved power delivery, and a more responsive driving experience while retaining the naturally aspirated characteristics of each model.

The software is developed and tested using 93-octane fuel, with published performance figures representing typical gains on stock vehicles. Actual results may vary depending on vehicle condition, fuel quality, environmental conditions, and installed modifications.

Softronic also offers additional calibration options, including free revving in neutral, speed limiter adjustments, and custom tuning through data logging when required. Certain optional features may require additional programming and are intended exclusively for competition applications.

The tuning package includes an OBD-II programming cable and Softronic flashing software, allowing the vehicle's ECU to be programmed through its diagnostic port. The software license is tied to a single vehicle's VIN and cannot be transferred between vehicles.

For Porsche 991.1 GT3 and GT3 RS owners seeking increased horsepower, stronger torque delivery, and improved engine response without major mechanical modifications, Softronic Performance ECU Software provides a comprehensive engine management upgrade.

Fitment Notes

  • Fits 2014–2016 Porsche 911 GT3 (991.1) with the 3.8L naturally aspirated flat-six

  • Fits 2016 Porsche 911 GT3 RS (991.1) with the 4.0L naturally aspirated flat-six

  • Softronic's published product titles reference broader 2013–2017 and 2015–2017 ranges; confirm market-specific model year and ECU compatibility before ordering

  • GT3 and GT3 RS require their respective vehicle-specific ECU calibrations

  • Not intended for 991.2 GT3 or GT3 RS applications

  • Manufacturer-advertised performance figures are based on stock vehicles using 93-octane fuel

  • Vehicles with aftermarket intake, exhaust, or engine modifications may require additional calibration

  • Software license is restricted to one vehicle and tied to its VIN

  • Optional calibration features may require additional programming

  • Confirm local emissions regulations and intended use before installation

Included

  • Softronic performance ECU calibration for the selected vehicle

  • OBD-II programming cable

  • Softronic ECU flashing software

  • Single-vehicle VIN-linked software license

Product Specs

  • Manufacturer: Softronic Software

  • Product Type: Performance ECU Tuning Software

  • Vehicle Application: Porsche 911 GT3 / GT3 RS (991.1)

  • GT3 Engine: 3.8L Naturally Aspirated Flat-Six

  • GT3 RS Engine: 4.0L Naturally Aspirated Flat-Six

  • GT3 Factory Horsepower: 475 bhp

  • GT3 Tuned Horsepower: 515 bhp

  • GT3 Advertised Horsepower Gain: +40 bhp

  • GT3 Factory Torque: 324 lb-ft

  • GT3 Tuned Torque: 354 lb-ft

  • GT3 Advertised Torque Gain: +30 lb-ft

  • GT3 RS Factory Horsepower: 500 bhp

  • GT3 RS Tuned Horsepower: 530 bhp

  • GT3 RS Advertised Horsepower Gain: +30 bhp

  • GT3 RS Factory Torque: 339 lb-ft

  • GT3 RS Tuned Torque: 363 lb-ft

  • GT3 RS Advertised Torque Gain: +24 lb-ft

  • Fuel Used for Published Results: 93 Octane

  • Programming Method: OBD-II Flashing

  • Software License: Single Vehicle / VIN-Locked

  • Custom Data-Logging Calibration: Available When Required

Product Features

  • Up to 40 horsepower increase raises manufacturer-advertised output to 515 bhp for the GT3 and 530 bhp for the GT3 RS.

  • Improved torque delivery provides an additional 30 lb-ft for the GT3 and 24 lb-ft for the GT3 RS.

  • Vehicle-specific ECU calibration is developed for the Porsche 991.1 GT3 3.8L and GT3 RS 4.0L engines.

  • Convenient OBD-II programming includes the necessary cable and flashing software for compatible vehicles.

  • Optional performance calibration features may include free revving in neutral and other vehicle-specific settings.

  • Custom tuning capability allows additional calibration through data logging when required for modified vehicles.