Spool IFX150 Upgraded DI Injectors – BMW B46/B48 Gen 1

Spool IFX150 Direct Injectors are sized for BMW Gen 1 B46/B48 engines to increase high-load fuel delivery while retaining street-friendly low-load characteristics.

• Supplier-rated at 150% of stock injector flow
• Capable of operation up to 290 bar
• Designed for ethanol-fuel performance builds

Calibration changes are required before operation.

Dispatch: Special order — allow 2–3 weeks.

Product System

• Fuel System

Vehicle Fitment

• BMW 1 Series F20 B46 B48
• BMW 1 Series F21 B46 B48
• BMW 2 Series F22 B46 B48
• BMW 2 Series F23 B46 B48
• BMW 3 Series F30 B46 B48
• BMW 3 Series F31 B46 B48
• BMW 3 Series Gt F34 B46 B48
• BMW 4 Series F32 B46 B48
• BMW 4 Series F33 B46 B48
• BMW 4 Series Gran Coupe F36 B46 B48

Confirm chassis, engine, drivetrain and production-year compatibility before ordering.

Supplier Part Number

SP-INJ-B4846

Built by Boost & Tune Support

BBT can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.