Spool IFX350 Stage 1 Upgraded DI Injectors (+30%) - Gen 2 B58 BMW

Spool Performance is proud to introduce our upgraded DI injectors for the Gen2 B58 Platform. The IFX 350 is carefully sized for the B58 Gen2 engine to keep stock-like idle and low load characteristics while allowing 30% more injector flow at high load and high rpm conditions. The injectors have undergone rigorous testing over months on our different test cars and have been perfected before release. It powers the current GEN2 DI-only world record B58 car along with our FX350 upgraded high pressure fuel pumps. Flow: 30% over stock DI injectors Pressure: Capable of flowing at up to 390 bar pressure Tune changes are required for running these injectors. Spool Performance will provide full calibration support for the same over all existing tuning platforms for the Gen2 B58 The injectors are covered by our warranty for a period of 1 year from the date of purchase.

Fits: Gen 2 B58 BMW G-series: M340i (G20), M440i (G22), M240i (G42), Z4 M40i (G29), 540i, 740i and X3 M40i (2020+)

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.