In this video I will break down what the XPR dual injector kit does to the Yamaha YZ250F engine character from Fox Raceway. If you're in the market to purchase a mod for your YZ250F, watch this video. Yes, this mod will work for your 2024-2025 YZ250F and only accepts the 250F airbox. A 450F airbox will not work with this specific kit. As always, if you have any questions please email us through our website. Keeferinctesting.com