Spool FX-350 HPFP Toyota Supra [B58 Gen2]

QT Parts is a Finnish online store.

Our warehouse is located in Nokia, Finland.

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The delivery time for products in stock is 1-5 business days. We ship worldwide.

If the product is not in stock and it is a pre order product, the average delivery time is 5-21 business days. If the product has a longer delivery time than previously announced, we will be in touch. International orders may be subject to VAT, import duties, and customs fees upon arrival in the destination country.

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-350 HPFP Upgrade | Toyota Supra B58 Gen2

The Spool Performance FX-350 is a top-tier High-Pressure Fuel Pump (HPFP) for the Toyota Supra B58 Gen2 engine. This solution is designed to enable extremely high power levels with direct injection alone, offering up to 350 bar operating pressure and significantly improved fuel capacity.

What is the FX-350?

The FX-350 is a precision-engineered HPFP that combines high pressure, high flow capacity, and excellent durability.

• Operating pressure up to 350 bar / 35 MPa / 5000 psi
• Same volumetric flow as FX-200 but at higher pressure
• Stainless steel construction
• DLC-coated piston and cylinder
• Plug & Play installation

Compatibility with Spool Gen2 high lift cam lobe upgrade:

• Increases total fuel output
• Prevents valve float at high RPMs

Performance

HPFP only:

• Gasoline: approx. 800 whp
• E50: approx. 670 whp
• E85: approx. 600 whp

HPFP + IFX150 Gen2 injectors:

• Gasoline: approx. 900 whp
• E50: approx. 740 whp
• E85: approx. 660 whp

HPFP + IFX150 Gen2 injectors + cam lift mod:

• Gasoline: approx. 1050 whp
• E50: approx. 950 whp
• E85: approx. 800 whp

Intended Use

The FX-350 is specifically designed for high-power DI-only configurations:

• Enables extremely high power without port injection
• Optimized to work with IFX150 Gen2 injectors
• Removes key limitations of the B58 Gen2 fuel system

Installation

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

Package Contents

• Spool FX-350 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 changes before commissioning
• 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 warranty
• An upgraded LPFP is practically essential

Warranty

• Lifetime warranty against manufacturing and material defects