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    New to the 4stroke world sidewinder mtx power mods?

    Yep, 80% of the riding is off trail in washington state. Leaning towards the closed loop tune and dash flash package from either precision or hurricane. I was very surprised how hard these pull in stock form, more than 180 hp that is for sure.
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    Hurricane Tunes First Experience

    The ONLY octane booster i would use and i use it in my 350hp pro r polaris and my 1000hp pump gas hellcat is Boostane. I have proven many times to myself that it works when watching data logs. I am very cautious about octane boosters but this stuff does work. It is NOT a race fuel replacement...
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    New to the 4stroke world sidewinder mtx power mods?

    Great news, i just want to make sure its safe to add cold air intake and exhaust to this stock tune. Not sure the ecm has the ability to add fuel in any way but looking at the map or boost sensor? in other words i dont think it adjusts fueling like modern cars do by looking at a wide band...
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    New to the 4stroke world sidewinder mtx power mods?

    First post, been riding for 35 years, currently have a couple 2 smoke turbos but wanted to get a yamaha before the new ones are gone forever. Many confusing reports on to tune or not, some say it wont make much difference at elevation, some say just do intake and muffler on stock tune. I already...


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