Spool FX-400X HPFP Toyota Supra [B58 Gen2]

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Our warehouse is located in Nokia, Finland.

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Terms for product returns:

• You must return the ordered products within 14 days of receiving
• The products must be unused and without damages
• Commission fee for handling returns is 21,90€
• For product returns, the customer is in charge of the return costs. Only door to door service (Express)
• Shipping costs are not refunded

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Return address: QT Parts, Vasarakatu 8B, 37150 Nokia, Finland.

Pre order / made-to-order products

If the product you have ordered is a pre order or made-to-order item, it is not subject to the 14-day right of withdrawal or return under consumer protection laws, as the product is manufactured or sourced specifically based on the customer’s individual order.

If you wish to cancel your order before receiving the product, we will refund 50% of the total order amount.

This condition applies to the following product categories:

• Suspension
• Engine Tuning
• Engine Parts
• Exhaust Systems
• Fueling
• Turbochargers/superchargers
• Drivetrain
• ECE-approved Downpipes

All of the above products are manufactured or sourced individually based on the customer’s order, and therefore cannot be returned after delivery, unless the product has a manufacturing or material defect.

In the event of such a defect, the standard liability for defects as provided by consumer protection legislation shall apply.

Spool FX-400X HPFP Upgrade | Toyota Supra B58 Gen2

The Spool Performance FX-400X is a flagship High-Pressure Fuel Pump (HPFP) for the Toyota Supra B58 Gen2 engine. This model offers an operating pressure of up to 350 bar and approximately +20% more capacity compared to the FX-350, enabling extreme power purely with direct injection.

What is the FX-400X?

The FX-400X is designed for maximum performance and fuel capacity on the B58 Gen2 platform.

• Operating pressure up to 350 bar / 35 MPa / 5000 psi
• Approx. +20% more flow vs. FX-350
• Full E85 compatibility
• Plug & Play installation
• Optimized for DI-only high-power setups

Combined with Spool IFX350 Gen2 injectors:

• Enables very high power levels without a port injection system
• Eliminates key limitations of the Gen2 B58 fuel system

Performance

HPFP + IFX350X Gen2 injectors:

• Gasoline: approx. 1100 whp
• E50: approx. 900 whp
• E85: approx. 800 whp

HPFP + IFX150 Gen2 injectors + cam lift mod:

• Gasoline: approx. 1200 whp
• E50: approx. 1050 whp
• E85: approx. 900 whp

Intended Use

The FX-400X is designed for extreme DI-only tuning setups:

• Maximum performance without supplemental injection
• Compatible with Spool Gen2 injectors and cam lift upgrade
• Enables very high power figures

Installation

• Fully Plug & Play
• Includes all necessary components for easy and clean installation

Package Contents

• Spool FX-400X High-Pressure Fuel Pump
• Mounting bracket
• Pump alignment tool
• Triple-layer low-pressure hose (nylon / steel braid / PTFE)
• Plug & Play HPFP adapter harness

Software Requirements

• Requires software modifications before use
• Support for various flash platforms is under development
• Spool can assist with implementing the necessary calibration changes

Important Note: LPFP

The low-pressure fuel system is critical:

• Insufficient supply can cause cavitation and damage
• Such damage is not covered by the warranty
• An upgraded LPFP is practically essential for setups of this power level

Warranty

• Lifetime warranty against manufacturing and material defects