This is a High Performance YZ450f fuel injector that flows 450cc/min. This is 20% larger than a factory injector and will supply enough fuel to make 62hp on gas. (at the wheels)

·        Works on all years of fuel injected YZ450f from 2010 to present, and is big upgrade over the factory part# 3B4-13761-00-00

·        Direct bolt in for easy installation (installation instructions included)

·        Shortened nozzle for superior fuel atomization and increased flow (resulting in more power in stock and larger throttle bodies)

·        Stock injectors max out at 52 wheel hp. A maxed out injector creates tuning inconsistencies, greatly increases chances of engine failure and reduces performance!

·        Superior fuel atomization increasing power and throttle response over other injectors

·        These are high performance Bosch injectors, and not Chinese knockoffs to look like a factory injector

·        Geisick Performance offers un-matched expertise to setup and deliver exactly what you need.

·        Wide variety of different sizes to best suit every engine! No matter the fuel you will run (pump gas, race gas, E85 or methanol) we have ran and tuned it all and will get you running in no time.

·        Dyno testing!!!! We can offer assistance and map modifications to get you up and running in no time! (Colorado locals will receive discounted dyno tuning rates!!! Contact us for more info. )

We offer both stock injector replacements and oversized fuel injector for Raptor, Grizzly, Rhino, RZR, Can Am X3, KTM, Husqvarna, Gas Gas, KFX, KX, YZ, YFZR, YXZ contact us today for the best injectors on the market!

For any and all installation, tuning or general questions please reach out and contact us first before starting a return. We have unmatched expertise and can help out to answer or solve any issues and pride ourselves in excellent customer service.