Spool Performance - IFX350-X Upgraded DI Injectors Stage 2 +60% || B58tu (B58 Gen2)

Spool Performance IFX 350X DI Injectors – Toyota Supra Gen2 B58

Maximize fuel delivery and unlock serious horsepower potential with the IFX 350X, Spool Performance’s highest-flowing direct injection (DI) injector for the Gen2 B58 platform. Designed for high-output builds while maintaining OEM-like drivability, the IFX 350X is the ultimate injector solution for B58 enthusiasts.

🚀 Unmatched Flow and Precision

Engineered specifically for the Toyota Supra Gen2 B58, the IFX 350X injectors offer a massive 60% increase in flow over stock while retaining smooth idle and low-load behavior—making them ideal for aggressive street builds and full-race applications alike.

• Flow Rate: +60% over OEM

• Max Pressure: Rated up to 390 bar for ultra-high pressure fuel demands

• Tuning Required: Calibration changes are essential; Spool Performance offers full support across all major tuning platforms for Gen2 B58

✅ Key Benefits

• Highest flowing Gen2 B58 DI injector on the market

• Maintains factory-like idle and drivability

• Ideal for big power DI-only builds

• Fully tested and backed by a 1-Year Warranty

• Proven compatibility with high-performance fuel systems like the FX350 and FX400X HPFPs

⚠️ Note: These injectors require proper tuning. Spool Performance provides full calibration support to ensure optimal performance and reliability.

💥 Ready for Four-Digit Horsepower Goals

Whether you're pushing for 800+ whp on E85 or aiming for DI-only power records, the IFX 350X injectors give you the fuel headroom needed to go further—safely and reliably.

Take your Gen2 B58 Supra to the next level with Spool’s most advanced injectors yet.