Yamaha YZ250F 2024-2025 2nd Injector kit (Please expect 2 weeks)

  • Sale
  • Regular price $1,040.59
Shipping calculated at checkout.

Overview
Shipping & Returns

This custom-engineered 2nd injector kit will bring your engine's throttle response and power range to the next level. The stock injector works with this kit to maximize your bike's performance and overall feel. Made from billet aluminum for strength and weight savings. Carefully assembled by hand, into a real genuine Yamaha OEM airbox for long-lasting performance. A Vortex ECU with our custom 2nd injector mapping is required to run our 2nd injector kit! Click here to browse our Yamaha ECU product page.

Please DO NOT attempt to install this kit into a Yamaha YZ450F airbox! This kit was engineered specifically for the Yamaha YZ250F 2024-2025, period! Attempting to use this kit in an unintended application, would be unsafe for the bike and rider!

If you already have a Vortex ECU, you can reflash your current Vortex ECU Here.

We now have a meticulously made, step-by-step installation manual. We will send a QR code with your 2nd injector kit, for an online PDF.

We also recommend Using a Twin Air PowerFlow filter kit, to get the most benefits out of our 2nd injector setup.

Can I use this kit for the Yamaha YZ450F/YZ450F's airbox?

No.
This kit was engineered specifically for the Yamaha YZ250F 24-25, period! Installing this kit into any other bike or airbox is unsafe for the bike and rider! This kit was not designed to be disassembled!

Will I need anything besides this kit?

-This kit comes with everything you need, besides the 2nd injector mapped Vortex ECU.
-Our 2nd injector kits require a Vortex ECU that has our 2nd injector maps. Click here to browse our Yamaha Vortex ECU page.

If you already have a Vortex ECU, you can reflash your current Vortex ECU Here.

What performance gains can I expect with this kit?

Our 2nd injector kits are designed to improve overall throttle response and feel, while also providing a hard-hitting mid, to top-end power range.

Are there any other mods I can do along with this kit, to get more power?

We recommend a Twin Air PowerFlow Kit to maximize airflow, along with drilling out your airbox cover. During our dyno testing, we found the YZ250F's airbox cover to be undoubtedly restrictive. We're currently working on a drill template for the cover.


How difficult is this to install?

Overall, this kit is a simple installation. It involves:
-Replacing your stock airbox with the modified one.
-Routing the wired injector connection to the Vortex ECU.
-Inserting the 2nd injector fuel hose T fitting, into the pre-existing fuel line.
For step-by-step instructions, we're now sending a QR code with your 2nd injector kit.

Do you have a manual for installation?


Yes, we do! It's an in-depth installation manual, with step-by-step instructions. We will send a QR code with your 2nd Injector kit for an online PDF.

Shipping

We offer free freight for online orders over $75.00 in the USA (Excluding AK & HI) Online orders only.

For International orders:

All orders will be shipped with an original invoice on the box, which shows the full amount that you paid for the products you have purchased. This will ensure that your package processes through customs with no delays. Some countries have import tax laws, in which case you would be liable to pay import tax on the items you buy from us. Please do your best to educate and familiarize yourself with these policies in your country. You may be responsible for paying these fees once you have received the package.

Returns

We want you to be happy with your XPR products and offer returns on orders 30 days after they are shipped. If for any reason, you're not happy with your purchase contact us.

Guarantee Fitment
Responsive & Knowledgable Customer Service
Free Shipping Over $150

rating
brandImg
"You'll actually feel the difference between a stock ECU and a Vortex ECU mapped just for you."
rating
brandImg
"I have a XPR Vortex and it is the best bang for the buck modification you can get!"
rating
brandImg
"XPR's custom Vortex mapping is much better than the stock ECUs. Feels powerful and easy to ride now."

Frequently Asked Questions

Description

This custom-engineered 2nd injector kit will bring your engine's throttle response and power range to the next level. The stock injector works with this kit to maximize your bike's performance and overall feel. Made from billet aluminum for strength and weight savings. Carefully assembled by hand, into a real genuine Yamaha OEM airbox for long-lasting performance. A Vortex ECU with our custom 2nd injector mapping is required to run our 2nd injector kit! Click here to browse our Yamaha ECU product page.

Please DO NOT attempt to install this kit into a Yamaha YZ450F airbox! This kit was engineered specifically for the Yamaha YZ250F 2024-2025, period! Attempting to use this kit in an unintended application, would be unsafe for the bike and rider!

If you already have a Vortex ECU, you can reflash your current Vortex ECU Here.

We now have a meticulously made, step-by-step installation manual. We will send a QR code with your 2nd injector kit, for an online PDF.

We also recommend Using a Twin Air PowerFlow filter kit, to get the most benefits out of our 2nd injector setup.

Can I use this kit for the Yamaha YZ450F/YZ450F's airbox?

No.
This kit was engineered specifically for the Yamaha YZ250F 24-25, period! Installing this kit into any other bike or airbox is unsafe for the bike and rider! This kit was not designed to be disassembled!

Will I need anything besides this kit?

-This kit comes with everything you need, besides the 2nd injector mapped Vortex ECU.
-Our 2nd injector kits require a Vortex ECU that has our 2nd injector maps. Click here to browse our Yamaha Vortex ECU page.

If you already have a Vortex ECU, you can reflash your current Vortex ECU Here.

What performance gains can I expect with this kit?

Our 2nd injector kits are designed to improve overall throttle response and feel, while also providing a hard-hitting mid, to top-end power range.

Are there any other mods I can do along with this kit, to get more power?

We recommend a Twin Air PowerFlow Kit to maximize airflow, along with drilling out your airbox cover. During our dyno testing, we found the YZ250F's airbox cover to be undoubtedly restrictive. We're currently working on a drill template for the cover.

How difficult is this to install?

Overall, this kit is a simple installation. It involves:
-Replacing your stock airbox with the modified one.
-Routing the wired injector connection to the Vortex ECU.
-Inserting the 2nd injector fuel hose T fitting, into the pre-existing fuel line.
For step-by-step instructions, we're now sending a QR code with your 2nd injector kit.

Do you have a manual for installation?


Yes, we do! It's an in-depth installation manual, with step-by-step instructions. We will send a QR code with your 2nd Injector kit for an online PDF.

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
Description

This custom-engineered 2nd injector kit will bring your engine's throttle response and power range to the next level. The stock injector works with this kit to maximize your bike's performance and overall feel. Made from billet aluminum for strength and weight savings. Carefully assembled by hand, into a real genuine Yamaha OEM airbox for long-lasting performance. A Vortex ECU with our custom 2nd injector mapping is required to run our 2nd injector kit! Click here to browse our Yamaha ECU product page.

Please DO NOT attempt to install this kit into a Yamaha YZ450F airbox! This kit was engineered specifically for the Yamaha YZ250F 2024-2025, period! Attempting to use this kit in an unintended application, would be unsafe for the bike and rider!

If you already have a Vortex ECU, you can reflash your current Vortex ECU Here.

We now have a meticulously made, step-by-step installation manual. We will send a QR code with your 2nd injector kit, for an online PDF.

We also recommend Using a Twin Air PowerFlow filter kit, to get the most benefits out of our 2nd injector setup.

Can I use this kit for the Yamaha YZ450F/YZ450F's airbox?

No.
This kit was engineered specifically for the Yamaha YZ250F 24-25, period! Installing this kit into any other bike or airbox is unsafe for the bike and rider! This kit was not designed to be disassembled!

Will I need anything besides this kit?

-This kit comes with everything you need, besides the 2nd injector mapped Vortex ECU.
-Our 2nd injector kits require a Vortex ECU that has our 2nd injector maps. Click here to browse our Yamaha Vortex ECU page.

If you already have a Vortex ECU, you can reflash your current Vortex ECU Here.

What performance gains can I expect with this kit?

Our 2nd injector kits are designed to improve overall throttle response and feel, while also providing a hard-hitting mid, to top-end power range.

Are there any other mods I can do along with this kit, to get more power?

We recommend a Twin Air PowerFlow Kit to maximize airflow, along with drilling out your airbox cover. During our dyno testing, we found the YZ250F's airbox cover to be undoubtedly restrictive. We're currently working on a drill template for the cover.

How difficult is this to install?

Overall, this kit is a simple installation. It involves:
-Replacing your stock airbox with the modified one.
-Routing the wired injector connection to the Vortex ECU.
-Inserting the 2nd injector fuel hose T fitting, into the pre-existing fuel line.
For step-by-step instructions, we're now sending a QR code with your 2nd injector kit.

Do you have a manual for installation?


Yes, we do! It's an in-depth installation manual, with step-by-step instructions. We will send a QR code with your 2nd Injector kit for an online PDF.