Porsche 991.1 GT3 / GT3 RS Custom Feature Package

Porsche 991.1 GT3 / GT3 RS Custom Feature Package

Regular price $3,999.00
Regular price $4,750.00 Sale price $3,999.00
Sale Sold out

This bundled package includes the following for your 991.1 GT3 / GT3RS

ECU Tuning

We have base ECU Calibrations supporting the following vehicles, click on the link for the Calibration Notes:

Maps are available in Stage 1 and Stage 2 configurations in 91, 93, 100, and E85 fuels.


Calibration Notes for the 991 PDK Transmission

Adjustable Features:
·        Custom Shift Points in Different Drive Modes
·        Clutch Pressure Adjustment
·        Race Start/ Launch Control
·        Shift Firmness
·        Shift Speed
·        Paddle to Shift Time
·        Continuous Slip
·        Idle Creep
·        Shift Stalk Engagement
·        Dual Paddle Neutral
·        Kickdown

M-Engineering Custom Features

Live Map Switching 

  • Map Switching allows the driver to independently select power levels based on the octane of the fuel or fuel type by using the cruise control stalk. Map switching can be performed with the vehicle running, without the need to shut the engine off.

Left Foot Braking

  • This feature is for track enthusiasts who like to use both feet while racing. This extends the time you can press the brake pedal before all throttle input is cut off. 
Example Map Slot Setup:
  • Slot1 - Valet
  • Slot2 - Stock Power
  • Slot3 - 93 Octane
  • Slot4 - 100 Octane
  • Slot5 - E85
Since Map Switching can be customized depending on the individual please contact us when purchasing if you'd like a different setup or would like a custom map slot.









Disclaimer: You accept responsibility and risks of any tunes and added features by M-Engineering. If you are not the end user of the car, you will be solely responsible for notifying the purchaser and/or customer they also accept the responsibility and risks of these and M-Engineering is not liable. M-Engineering is also not liable for voided warranties due to installation of our products. 

Return Policy: All sales are final and non-refundable. M-Engineering provides specific software calibrations for individual vehicle use and is not liable for misuse or vehicle behavior due to installation error or mechanical issues. M-Engineering will work one-on-one with individuals to assist with remote diagnosis to vehicles to our best ability and advise next-action steps as needed. End-users are responsible for vehicle maintenance, integrity of aftermarket parts installation, and having their vehicles up-to-date with their manufacturer's latest updates and TSB's.