BMW Gen 2 B46 & B48 Spool IFX350X Stage 2 DI Injectors

The Spool IFX350X Stage 2 direct injection injectors for the Gen 2 B46 and B48 flow 60% more than stock while keeping stock-like idle and low-load manners.

Why you need it

The factory injectors cap how much fuel a tuned Gen 2 B48 or B46 can get at high load and high rpm. The IFX350X is sized for this engine so idle and light-load driving stay smooth, while flow climbs 60% over stock when you need it.

Fits

• Gen 2 B46 and B48 engines (confirm your vehicle before ordering)

Features

• 60% more flow than stock DI injectors
• Rated to flow at up to 390 bar
• Stock-like idle and low-load behavior

Good to know

Tune changes are required to run these injectors, and Spool provides calibration support for the Gen 2 B48/B46 tuning platforms. Pairs well with the Spool FX-350 high pressure pump. Professional installation is recommended.