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***HEX Tuning OBD2 Flash Tune for BMW M3/M4 F8X


Quick Overview

Upgrade your M3/M4 to a CS level experience with one simple tune! HEX Tuning by VFE provides you with the power boost from the Competition Package, or CS trim levels, while also adding GTS level feature like startup roar, exhaust overrun burble, and speed limiter removal!

This is a flash-tune which overwrites your original OEM ECU tune. For those of you with piggy-back tuning systems, choose the "GTS Feature Set (Stock Power)" only option to activate exhaust burble and star-up sounds on-top of your existing piggyback tune solution.

Sku # : HEX-Tuning-F8X-M3-M4-VFE-Tune
Power Level
HEX Tuning By VFE Reflash ECU Software for BMW M3/M4 F8X [VFE1]
  • Activates your M's Hidden GTS Potential!
  • Noticeable increase in vehicle get-up-and-go with quicker acceleration feel
  • Fully compatible with older piggy-back-tunes for those who just want the GTS Feature Set


  • GTS Style "burble" on Exhaust over run

  • Up to 30whp and 35wtq gains over stock F8X power.

  • Aggressive new start-up "Roar"


  • 2014+ BMW M3 F80

  • 2014+ BMW M4 F82


The HEX Tuning Flash Tuner by VFE unlocks all the missing GTS Features your BMW M3/M4 should have come with from the factory. We offer this tune in 3 different levels.

Base level leaves your engines power output the same while adding GTS sound features on top. This is ideal for customers who already have a Competition Pack or CS trim level M3/M4, or those running a piggyback tune and are looking for that GTS exhaust burble effect.

For those with Standard M3's and M4's, HEX Tuning offers a ZCP or CS level power boost providing you with up to an additional 30whp and 35wtq.

BMW HEX Flash Downloads Here

GTS Feature Set Includes:

  • Top-Speed Limiter (set to 192mph)
  • GTS Sport Display Power Level
  • GTS Start-up Sequence "Roar"
  • GTS Throttle Overrun Exhaust Burble
    -Controlled by Driving Mode-
    COMFORT No Burble
    SPORT Soft Burble
    SPORT+ Loud Burble

With GTS Sport Display


Please contact us if you have questions about HEX Tuning's F8X M3/M4 Flash Tune with GTS Feature Set [VFE1]
(714) 582-3330

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