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GTM Griso QC Meg

Discussion in 'Griso-Bella Chat & Tech' started by NorthernProducer, Sep 10, 2017.

  1. NorthernProducer

    NorthernProducer Just got it firing!

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    I received my QC Meg muffler a couple days ago and installed it on my 2015 Griso. Even though the fit to the Y-pipe is a bit tight (no gasket needed), the installation was completed is short order and without any issues encountered. I have since taken the bike out for 2 test rides and it performed well. Sound is a bit louder than the stock muffler as promised and it has a great sound. One of my goals in replacing the OEM muffler was to reduce the weight (about 20 lbs) which is focused on the left side of the Griso and the Meg certainly delivers on that point. When riding the curvy back roads in my part of Tennessee, I can tell that the bike is better balanced with noticeable improvement in handling. So far, the fueling seems fine with the custom map I purchased from Todd about a year ago for use with the stock muffler, and there has been no negative impact on mileage. The added bonus of eliminating the cat and the heat it generates was welcome, too. Overall, a well designed, well made and worthwhile improvement for my Griso.

    Griso Meg QC.jpg
     
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  2. Norm B.

    Norm B. Just got it firing!

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    Looks great! I'm hoping to work some OT this winter, and order one of those for my 2012 Griso. Nice!
     
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  3. Tom Prescott

    Tom Prescott Just got it firing!

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    Can you post a sound clip?
     
  4. GT-Rx®

    GT-Rx® Administrator Staff Member GT di Razza Pura

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    I had one somewhere, but can't find it now. You not like yours?
     
  5. Tom Prescott

    Tom Prescott Just got it firing!

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    Would like a comparison, It's just a tad loud.
     
  6. GT-Rx®

    GT-Rx® Administrator Staff Member GT di Razza Pura

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    You must be getting old! :eek:
    QC is a touch louder than stock, but not much. Just deeper.
     
  7. Tom Prescott

    Tom Prescott Just got it firing!

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    I'm trying to think back how the dual LaFranconi's sounded on my Jackal, we are getting old. :)
     
  8. GT-Rx®

    GT-Rx® Administrator Staff Member GT di Razza Pura

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    scottmastrocinque likes this.
  9. Tom Prescott

    Tom Prescott Just got it firing!

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    Isn't that the awesome X-Fire system?
     
  10. GT-Rx®

    GT-Rx® Administrator Staff Member GT di Razza Pura

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    Yep, the beastly GTM-01 (1380cc) X-Fire = LOUD and love it. ;)
     
  11. Tom Prescott

    Tom Prescott Just got it firing!

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    Does the GC have a different map?
     
  12. T_Guzzi

    T_Guzzi Just got it firing!

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    Is there a noticable increase in vibrations associated with these? I am keen, however for long rides I cant`t handle any more vibrations than stock....
     
  13. GT-Rx®

    GT-Rx® Administrator Staff Member GT di Razza Pura

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    Compared to ?
     
  14. GT-Rx®

    GT-Rx® Administrator Staff Member GT di Razza Pura

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    No, vibrations are typically related to the restrictive exhaust and emissions focused fueling... besides the fact it is a V-Twin engine. Getting rid of the stock muffler (cat con) helps, but it really should involve fixing the fueling as well; https://gtmotocycles.com/products/gt-motocycles-5am-7sm-reflash-tool
     

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