IPOSMotosport S58/B48E Injectors (TU Injector Upgrade)

Looking to increase fueling capacity without sacrificing OEM reliability? The S58/B48E HDEV6 Injector Upgrade is the perfect solution. Originally equipped in the BMW S58 M engines and B48E M35i, these OEM direct injectors deliver a significant 33% increase in fuel flow over the standard TU injectors.

These injectors are a drop-in upgrade for TU (Technical Update) versions of the B46, B48, and B58 engines, offering enhanced performance and scalability for higher horsepower builds or ethanol-based tuning setups.

Key Features:

• 33% More Fueling Capacity vs. stock TU injectors

• OEM Spray Pattern & Reliability

• Perfect for high-performance builds, flex fuel, or ethanol blends

• Direct Fit for TU Engines – No modification required

• Tune Required – Must recalibrate fueling parameters

Compatibility:

• Compatible with:

  • B46TU

  • B48TU

  • B58TU

• Not compatible with:

  • Gen 1 B46, B48, or B58 engines

Important Notes:

• Price is per injector

• Tune changes are required to support the increased flow rate

• Not suitable for non-TU or Gen 1 BMW engines

• Professional installation and tuning are strongly recommended

Applications:

Ideal for BMW owners and tuners seeking a reliable fueling solution for:

• High-boost applications

• Ethanol/flex-fuel conversions

• Big turbo upgrades

• Track or drag builds

Enhance your TU-platform BMW’s fueling capacity with proven OEM components from IPOSMotorsport. Designed for those pushing the limits of their B-series engines while retaining factory-like drivability and reliability.