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  1. YFZ Powertrain
    Have a 2017 YFZ450R, just got the Vortex ECU, and hoping for some direction on map/fuel settings... I live outside of Denver, and am at 5,300ft Elevation. Mods: 1. AIS Delete 2. 38 Motorsports Breather Box 2. Yoshi RS-2 Full Exhaust -Standard intake (airbox lid-on) -No Engine modifications...
  2. YFZ450 & YFZ450R General Talk
    i have a 14 yfz450r fuel injected. ever since i installed my new exhaust and intake, it sounds like an ak-47 once i let off the throttle šŸ¤£šŸ¤£. the back firing is crucial. not wanting to spend 800$ on a vortex. could a power commander fix the back firing?
  3. YFZ450 & YFZ450R General Talk
    I have a 2019 yfz 450r with a full hmf egg shape exhaust, gytr air filter mod, and the hmf fuel optimizer. If someone could help me out with what I should adjust the settings to for the best tune. Right now it is the beginning of winter where I am. It still has a slight bog and the pipe glows...
  4. Maintenance
    I have a 2019 yfz 450r with a full hmf egg shape exhaust, gytr air filter mod, and the hmf fuel optimizer. If someone could help me out with what I should adjust the settings to for the best tune. Right now it is the beginning of winter where I am. It still has a slight bog and the pipe glows...
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