Description
Unlock the full potential of your A90/A91 Toyota Supra with the Spool Performance FX400X Upgraded High Pressure Fuel Pump—our most powerful and technologically advanced HPFP to date. Designed to push the limits of the Gen2 B58 platform, the FX400X is capable of delivering fuel at an industry-leading 350 bar (35MPa / 5000 psi), offering an approximately 20% increase in fuel delivery over the already potent FX350 model.
This pump is a game-changer for enthusiasts seeking to achieve Direct Injection-only horsepower records, especially when paired with our IFX350 Gen2 DI injectors or IFX150 injectors + Spool Cam Lift Mod. With support for up to 1200whp depending on configuration and fuel type, the FX400X ensures precise fueling under the most demanding performance conditions—whether you're running pump gas, E50 mix, or full E85.
Engineered for true plug-and-play installation, the FX400X includes everything needed for a clean, hassle-free install, including a precision alignment tool, robust triple-layer low-pressure line, adapter harness, and all mounting hardware. As with all Spool Performance products, the FX400X is backed by our industry-leading lifetime warranty—with the exception of cavitation-induced damage due to inadequate low-pressure supply.
Key Features:
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Unmatched Fueling Capability – Delivers fuel at 350 bar (35MPa / 5000 psi), a 20% increase over the FX350.
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High Horsepower Support – Supports up to 1200whp when combined with Spool injectors and cam lift mod.
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DI-Only Revolution – Enables record-setting performance on the Gen2 B58 using only Direct Injection.
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Complete Plug-and-Play Kit – Includes all lines, harnesses, and tools for a straightforward install.
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Triple-Layer LP Line Construction – Built from PTFE core, stainless steel braid, and a protective nylon outer layer for durability and E85 compatibility.
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Calibration Support Available – Spool Performance can assist with required tune changes across various platforms.
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Lifetime Warranty Coverage – Ensures long-term performance and peace of mind (excluding cavitation-related damage).
Fueling Capabilities:
With FX400X + IFX350X Gen2 Injectors:
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Gasoline: 1100whp
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E50 Mix: 900whp
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E85: 800whp
With FX400X + IFX150 Gen2 Injectors + Spool Cam Lift Mod:
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Gasoline: 1200whp
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E50 Mix: 1050whp
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E85: 900whp
What’s Included:
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Spool Performance FX400X High Pressure Fuel Pump
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Mounting Bracket
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Pump Alignment Tool
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Triple Layer Low Pressure Line (Nylon over Stainless Steel over PTFE)
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Plug and Play HPFP Adapter Harness
Important Note:
A proper low-pressure fuel supply is essential for the FX400X to operate as intended. Cavitation-induced damage to the pump’s piston and bore from inadequate low-side fuel pressure is not covered under warranty. We highly recommend pairing this HPFP with an upgraded low-pressure fuel pump to maintain consistent supply and maximize reliability.
Fitment:
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Toyota A90 Supra 3.0L (2020-2021) with Gen2 B58 Engine
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Toyota A91 Supra 3.0L (2021-2024) with Gen2 B58 Engine
Shipping Dimensions:
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12 in (width) x 10 in (height) x 6 in (depth)
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Weight: 5.2 lbs
Upgrade your Toyota Supra’s high-pressure fueling system with the Spool Performance FX400X and unleash the full potential of your Gen2 B58 platform.
Note: 'New' merchandise may be returned for exchange or refund within 15 days from the date of shipment. 'New' merchandise must be unused and free from installation or mounting damage. Installation or modification of parts waives your right to returns, refunds, or exchanges.
