Want to wake up your 2019-2023 YZ250F? Look no further, the Twisted Development Second Injector kit is exactly what you need. This is MADE for stock motors that need some more HP. Recommended to run this kit with a Twin Air Power Flow Kit and FMF 4.1 Full system or equivalent. This is a serious upgrade for the 19-23 YZ250F. Removed from a 2023 YZ250F and used for roughly 12 hours. Ran with VP T4 cut down with pump gas. The bike was running to perfection when removed. Once again, recommended with fmf 4.1 and power flow or GYTR kit to maximise HP. Fits 19-23 YZ250F Models. Brand new retail was over 2100$. You can no longer buy the second injector kit through TD for 19-23 Models, only 24+. Only available when listed on MXlocker. PB1425 ALL orders include a FREE $20 Motosport gift card! No strings attached just place that order! Please confirm fitment before ordering. Let me know if you have any questions! Thanks for shopping! *International Buyers are responsible for Import Fees / Duty Fees / Taxes* *Buyer is responsible for verifying condition BEFORE purchase! (more photos can be provided upon request) ALL SALES ARE FINAL*