GT-Rx ECU Re-Flash Services

Rated 5.00 out of 5 based on 5 customer ratings
(5 customer reviews)



GT offers full programing options for Race Only ECU flashes for your Big Block Guzzi (5AM ECU) Breva, Griso, Norge & Stelvio – NOT California 1400 at this time (see our FULL KIT HERE), (15M/RC) Breva/Nevada or ≤2012 V7’s, and all V11S & Cal 1100 models, or 2013-current V7 I & II (MIU).

Cost for this service, which requires you to mail us YOUR ECU, is $375 for the 5AM & MIU, or $250 for the 15M/RC + shipping, OR on occasion, we do have some for purchase outright or exchange with core fee, contact us per below. This will require immediate reset of the TPS (Throttle Position Sensor) via diagnostic software such as THIS KIT or your local dealer. If this is something that is an annoyance or daunting to you, see our Flash Tool Option HERE.

Not legal for public roadway use.

Contact us with any questions via the Contact tab above, Live Chat below or direct email; Info at

SKU: GT-Rx-ECUFLSHSVC Categories: ,

Additional information

Weight 4 lbs

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5 reviews for GT-Rx ECU Re-Flash Services

  1. Rated 5 out of 5

    John D.

    I installed the GT ECU on the Quota today, mapped for the new 2>1 Header System here at GT. The progression from idle into first gear is fantastic, no more touchy throttle, and I can idle along trails at 1200 rpm with no lurching, which was a real problem before. Update two days later: Had it out for a spin again today. No problem starting, let it warm up for a minute and it ran great. Thanks again! One happy customer. JD

  2. Rated 5 out of 5

    Shane Chalke (verified owner)

    I just had my ECU remapped and bought Arrow mufflers for my 2011 V7R. It’s an amazing transformation. All the stuttering and snatchiness at low rpm is gone, and I don’t even have to use the cold start lever. The bike will now pull from 2,500 rpm in top gear. Before this, I rarely used the engine below 4,000. It’s even smooth around town in lower gears at 2,000rpm. It definitely has more power above 5,000, but the fueling is the big change. It’s now superb!

  3. Rated 5 out of 5


    Rode my 2014 Stelvio NTX to Malibu from Northern California last weekend in order to have Todd perform a 6K service and Flash. I thought the bike ran well prior to the Flash service, however as I would work through the gears and twist the throttle there would be some lag areas in addition to extreme heat coming from the cylinder heads. I had also been experiencing some stuttering when off the throttle going downhill. Todd assured me that I would experience better & smoother performance, less heat and no stuttering / backfiring. He was absolutely right! I didn’t want the ride back home to Northern California to end – It was if I had a different bike….and I already loved the Stelvio. Big Thank you to Todd

  4. Rated 5 out of 5

    John Colleary

    Had Todd do service on my 2013 Stelvio and do a reflash. WOW! I now have the bike I wanted when I bought it. It is so much smoother. It was horrible to ride in the 4000rpm zone with no power and vibration now it is smooth all of the way from bottom to top. can’t wait to take a long trip. Thanks Todd great work!!!!

  5. Rated 5 out of 5

    Toni Erickson

    It was mentioned during the course of arranging the initial run-in service on my V7 Mk. III, that GuzziTech offered an optimised fuel mapping for the stock bike. I’ve never had the factory fueling corrected on a motorcycle before, so seeing as GT’s services came highly recommended from multiple sources I decided to pull the trigger. It’ll soften the on-off throttle transition, I thought, maybe ease cold starts. Nothing major, surely!

    The improvement is pronounced. That first cruise down the lot in first gear without so much as a stumble or jerk from the powertrain would’ve been worth it alone, but the change is wholesale. Initial throttle no longer feels binary and the engine lays down power like warm butter on toast. The mid-range for passing manoeuvres feels punchier than before, and as someone that likes to hustle the bike now feels fully up to playing along. This new feeling of refinement to the motor is well worth the cost.

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