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Air and Fuel Oxygen Sensors, Controllers and Components

Electronic Jet Kit

EJK 3.0 Fuel Controller

$300.00 $250.00 Save $50.00

SKU: 9310305

In Stock
In Stock
Ships by Aug 4
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Dobeck 9310305 is an Electronic Jet Kit (EJK) fuel injection controller specifically designed to enhance performance for stage 1 modifications on compatible vehicles. This controller acts as a piggy-back system, meaning it works alongside the stock ECU without replacing it, by monitoring and adjusting signals to the injectors. The controller offers adjustable fuel mapping through distinct green, yellow, and red modes. Initial recommended base settings for stage 1 modifications are provided: GRN @ 3, YEL @ 4.5, RED @ 4.5, G/B @ 5, Y/B @ 4.5, and R/B @ 4.5. It is important to note that this specific controller is not California ON-ROAD approved; a CARB E.O. D-654 compliant version is available via phone order. This EJK controller is engineered to fit the Honda CRF250F/300F models from 2018 to 2026. The product is subject to a Minimum Advertised Price (MAP) policy, and additional technical information is available through the manufacturer's support resources.

MIA's Description

The Dobeck 9310305 is an EJK fuel injection controller designed for stage 1 modifications. It features adjustable fuel settings across green, yellow, and red modes, with specific recommended base settings for stage 1 modifications included.

Fitment

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Available on iOS & Android

Specifications

BrandElectronic Jet Kit
Part Number9310305
CategoryAir and Fuel

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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