Delivery time: approx. 4-5 weeks

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

Item code: 14007-AT001 | Increased fuel supply for higher power outputs

The HKS Upgrade Fuel Kit is designed to make the fuel supply of the Toyota GR86 and Subaru BRZ FA24 (2021+) reliable for turbocharged applications.
When you install the HKS GTIII-RS Bolt-On Turbo Kit, the demand for fuel increases significantly. The standard fuel components of the FA24 are designed for naturally aspirated power, and quickly reach their limit with higher boost pressure and horsepower.

With the HKS Fuel Kit, you prevent fuel pressure drops under high load, allowing your engine to perform reliably and safely – even during prolonged high RPMs and boost.

Key Features:

✅ Larger fuel injectors – Delivery of additional fuel for higher power outputs
✅ Upgraded high-pressure fuel pump – Consistent pressure, even at 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

Technical Specifications:

Why this upgrade?

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

• Stable fuel pressure under high load

• Optimal AFRs for safe combustion

• Protection against detonation (knocking)

• Uninterrupted power and torque

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

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

Installation:

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

Delivery Time & Availability:

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

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

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