1050cc Bosch Port Fuel Injectors for BMW M4/M3 S58 B58 N55 S55 N54 (Set of 6)
Supplemental Fueling for High Horsepower BMW Builds
These Bosch 1050cc high-impedance fuel injectors are engineered for multi-port injection (MPI) systems on BMW S58, B58, N55, S55, and N54 engines. Designed to complement the factory direct injection system, these injectors provide the additional fuel volume required for high-boost, ethanol-blended, and race fuel applications where the OEM injectors and high-pressure fuel system become a limiting factor.
Rather than replacing the factory direct injectors, these MPI injectors work in conjunction with them, allowing tuners to safely increase fuel delivery while maintaining excellent drivability and consistent performance.
Why Add MPI?
As power levels increase, the factory direct injection system can reach its fueling limits, especially when running E85 or high ethanol content fuels. A properly configured MPI system provides:
- Additional fuel capacity for higher horsepower targets
- Reduced demand on the factory high-pressure fuel system
- Improved fueling consistency under high boost conditions
- Enhanced support for E85 and ethanol-blended fuels
- Increased tuning flexibility for street, track, and race applications
- Additional safety margin against lean conditions at peak load
Performance Matched
Each injector is precision flow tested and matched to help ensure balanced cylinder-to-cylinder fueling. The 1050cc flow rate offers substantial fueling capacity for a wide range of turbocharged BMW applications while maintaining excellent idle and part-throttle characteristics when properly calibrated.
Features
- 1050cc/min flow rate
- High-impedance design
- Genuine Bosch EV14 technology
- Compatible with MPI manifolds and fuel rail systems designed for BMW S58, B58, N55, S55, and N54 engines
- Excellent spray pattern and atomization
- Flow matched set of six injectors
- Suitable for gasoline, E85, and ethanol blends
- Tunable for street, track, and competition use
Common Applications
- BMW G80 M3
- BMW G82/G83 M4
- BMW M2 (S58)
- BMW B58-powered performance builds
- BMW N54 high-horsepower applications
- BMW N55 and S55 turbocharged builds utilizing aftermarket MPI systems
What's Included
- (6) Flow-matched 1050cc Bosch fuel injectors
