Spool IFX150 Upgraded DI Injectors - Gen 1 B58

Spool Performance is proud to introduce the IFX 150 , our upgraded Direct Injection (DI) injectors designed specifically for the Gen 1 B58 platform . These injectors are meticulously engineered to maintain stock-like idle and low-load characteristics while providing an impressive 50% more injector flow during high-load and high-RPM conditions. After months of rigorous testing on multiple vehicles, the IFX 150 has been perfected to meet the demands of high-performance enthusiasts. Key Features and Benefits Flow Capability: Provides 150% more flow compared to stock DI injectors. Pressure Handling: Operates seamlessly at pressures up to 290 bar , ensuring reliable performance even at extreme demands. Optimized for Balance: Maintains smooth stock-like drivability at idle and low load while delivering maximum flow at high RPMs.

Fits: Gen 1 B58: BMW M140i, M240i (F22), 340i (F30), 440i (F32), 540i (G30), 740i (G11), X3 M40i (G01), 2016–2019

Brand: Spool Performance

• Ships from the brand or distributor, usually in 3–7 business days.
• Shipping is charged at the carrier's rate, shown at checkout. Orders over 70 lb ship by freight for a flat $99.
• Unused parts can be returned within 30 days. Some items are marked no-refund in their description.

Full details are on our shipping and returns page.