EVOMSitECU Tuning for 991 Carrera / S / GTS

Product type: Software Tuning
  • 911 Carrera GTS - 991
  • 911 Carrera - 991
  • 911 Carrera S - 991

Product Description

The EVOMSit performance software for the Porsche 991 is a simple yet effective way to improve the performance of a completely stock or slightly modified 3.4 or 3.8L engine. Our rigorous testing, attention to details and stringent quality control ensures this upgrade is in a league of its own in terms of power and engine safety. Thoroughly tested on both the street and racetrack with both 91 and 93 octane pump fuels. The seamless integration of our software tuning enhances the overall power and drivability of this engine for uncompromised performance. This is done via the use of our hand-held upload/download programmer OBDII tool so no ECU removal is required. OBDII tool/software also comes with a code reader for diagnostics.

EVOMSit ECU Tuning Features iInclude:

  • Stage 1 software programmed for stock exhaust / standard OEM catalysts
  • Stage 2 software programmed for aftermarket exhaust / standard OEM catalysts
  • Takes advantage of the untapped potential of the engine without excessive mechanical stress
  • ~13 HP / ~10 ft.lb. TQ Gain – Software Alone 
  • Dyno Tested on 91 Octane Fuel. 93 Octane mapping yields slightly higher power gains
  • All engine protection functions remain intact
  • OBDII diagnostic capability is fully retained
  • Calibrations for both 91 octane (95 RON) and 93 octane (98 RON) specific fuel 
  • Improved throttle response / overall drivability 
  • Extensively tested, performance validated

The EVOMSit TUNEit handheld unit is included with your ECU Tuning purchase. This unit allows you to download and install our performance software via your car's OBDII diagnostic port. Simply plug in the handheld unit via included OBDII cable, read out your file, and email it to us. (Access to an email-enabled PC with Windows operating system and USB port is done via the included USB cable.) We will email you back (usually within 24 hours) a performance file that you can upload yourself.

NOTE: Installation requires the use of an automobile BATTERY CHARGER (10+ AMP)

EVOMSit TUNEit Handheld Unit Features Include:

  • OBD Port Flash with EVOMSit GEN 2 Tuning Tool
  • Tuning Tool stores multiple Tuned files as well as Original software. At anytime, stock software can be installed without the need of internet or a laptop
  • Truly optimized power while maintaining OEM engine protection features
  • Factory smooth power delivery – most applications smoother than factory
  • Full data backup of each ECU that is upgraded
  • Diverse tuning portfolio supporting different hardware, fuel grades and climates
  • Optimized software for specific hardware
  • Integrated Intelligent Switching Technology™ (IST) with Octane Sensing Timing Advance