HKS Upgrade Fuel Kit – For HKS GTIII-RS Bolt-On Turbo Kit – Toyota GR86 / Subaru BRZ FA24 (2021+)

Item Code: 14007-AT001 | Increased fuel delivery for higher power output

The HKS Upgrade Fuel Kit has been developed to make the fuel supply of the Toyota GR86 and Subaru BRZ FA24 (2021+) on turbo applications reliable.
When you install the HKS GTIII-RS Bolt-On Turbo Kit , the fuel demand increases significantly. The standard FA24 fuel components are designed for naturally aspirated power and quickly reach their limits at higher boost pressures and horsepower.

The HKS Fuel Kit prevents fuel pressure drops under high loads, allowing your engine to perform reliably and safely – even at high revs and boost for extended periods.

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Key Features:

✅ Larger fuel injectors – Delivering extra fuel for higher power output
✅ Upgraded high-pressure fuel pump – Constant pressure, even under maximum load
✅ Designed for Turbo – Specifically developed for HKS GTIII-RS Bolt-On Turbo Kit applications
✅ OEM Compatible Mounting – Fits without modifications to fuel rails or ECU connectors
✅ Reliable power reserves – Prevents lean running at high boost

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Technical specifications:

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Why this upgrade?

A turbo engine needs more air and more fuel.
The HKS Upgrade Fuel Kit provides:

• Stable fuel pressure at high loads

• Optimal AFRs for safe combustion

• Protection against detonation (pinging)

• Power and torque without interruption

Without this upgrade, the standard fuel supply can become a bottleneck, leading to a lean mixture and engine damage.

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Application:

• Toyota GR86 – FA24 2.4L – 2021+

• Subaru BRZ – FA24 2.4L – 2021+

• Only suitable in combination with HKS GTIII-RS Bolt-On Turbo Kit

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Installation:

Mounting is completely bolt-on in the OEM position.
It is recommended to have the installation carried out by a professional tuner, and after installation the ECU tuning should be optimized for the new fuel components.

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Delivery time & Availability:

Original HKS Japan product – Made-to-order with an average delivery time of 3–5 weeks .
Supplied as a complete kit including all necessary mounting hardware.

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In summary:

• ✅ Higher fuel capacity for turbo power

• ✅ Prevents lean running and engine damage

• ✅ Designed for FA24 with HKS Turbo Kit

• ✅ OEM fit, plug & play installation

• ✅ HKS Japan quality and durability

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The HKS Upgrade Fuel Kit is a must-have for anyone installing the GTIII-RS Turbo Kit on their Toyota GR86 or Subaru BRZ.
With this kit you can ensure a reliable and powerful fuel supply, even at extreme performance levels.