ECU Re-Flash Service - 4 into 2 TwinStar Slip-On with MAB Ver 2 (09-20 All)

Gurued Gear

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ECU Re-Flash Tune File for:

 4 into 2 Exhaust System

 with Modified Air Box

Version 2

High Performance ECU RE-Flash for the second generation Yamaha VMX17 V-Max equipped with 4 into 2 Medium Length Tube Mid Pipe (Maxflow, UFO, VooDoo) Style Exhaust System, Modified Air Box and a K&N Air Filter.  


This tune was developed to meet the fuel, throttle and ignition requirements of the VMX17 V-Max equipped with 4 into 2 short tube mid pipe (Maxflow, UFO, VooDoo) Style exhaust system and a modified Air Box with a K&N Air Filter. 

Some of the Features:

  • Rev Limit increased
  • Speed limit removed
  • Throttle By Wire restrictions removed
  • Excessive timing retard eliminated
  • Individual Cylinder's Alpha N and Speed Density Fuel Table re-tuned
  • YCC-T Opening rate adjusted for better cruise response and maximum throttle angle adjusted for peak Horsepower
  • Slight throttle openings are more tame and the response is slightly more mild and manageable
  • EXUP servo can be eliminated
  • Air Induction System valve can be permanently switched closed
Off-throttle engine braking in the first 3 gears has been reduced


For use in sanctioned closed course events only.


2 Reviews Hide Reviews Show Reviews

  • 5
    This ECU flash is AMAZING!!!! If your thinking about doing it, don't wait! I couldn't be happier.

    Posted by NaasT on May 20th 2021

    I modified my air box and used the modified air filter bracket available on this web site. Plus I changed my stock pipes to Voodoo mass flow pipes and had my ECU flashed. What a difference!!!! I love this upgrade. Way more power and it sounds like an old muscle car. Mike and Chris were super helpful through the process too.

  • 5
    Great flash service

    Posted by Mike bean on Mar 20th 2019

    Turn around time was great, staff very responsive and helpful throughout the entire process. ECU works like a charm.