Spool Performance A90/ A91 Supra IFX350 Gen2 B58 Upgraded DI Injectors Stage 1 +30% - SP-INJ-B58-SUP1

Enhance your Toyota Supra’s fueling capabilities with the Spool Performance IFX350 Stage 1 Upgraded Direct Injection (DI) Injectors, designed specifically for the Gen2 B58 engine platform. These +30% flow injectors are engineered to deliver increased fuel volume while retaining stock-like drivability, idle smoothness, and low-load behavior—making them ideal for both daily drivers and performance builds.

With a 30% increase in fuel flow over factory injectors and support for pressures up to 390 bar, the IFX350 injectors are perfect for those seeking reliable fueling upgrades for ethanol blends like E85 or increased boost applications. These injectors have been rigorously tested over months of real-world use on various test vehicles and have powered the current Gen2 DI-only world record-holding A90 Supra at 745whp when paired with Spool’s FX350 High-Pressure Fuel Pumps.

Installation requires tuning adjustments, and Spool Performance offers full calibration support across all Gen2 B58-compatible platforms to ensure seamless integration and optimal engine performance.

Key Features:

• +30% Increased Injector Flow – Significantly improves fueling for higher horsepower builds.

• 390 Bar Pressure Capability – Supports high-performance DI setups under extreme engine loads.

• Designed for Gen2 B58 Engine – Maintains stock-like idle and low-speed drivability.

• Track-Proven Performance – Powers the Gen2 DI-only world record Supra at 745whp.

• Full Calibration Support – Spool Performance provides tuning support for all major B58 tuning platforms.

• 1-Year Warranty – Includes a one-year warranty from the date of purchase.

Fitment:

• Toyota A90 Supra 3.0L (2020-2021) with Gen2 B58 Engine

• Toyota A91 Supra 3.0L (2021-2024) with Gen2 B58 Engine

Note: Tune modifications are required to utilize these injectors. 

Upgrade your Toyota Supra’s fueling system with the Spool Performance IFX350 Stage 1 Injectors and experience enhanced reliability, power, and drivability for your Gen2 B58 build.

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.