DeatschWerks 7-904 BMW S58 Port-Injection Fuel Rail

The DeatschWerks 7-904 is a high-performance port-injection fuel rail engineered for the BMW S58 engine as found in the M2, M3, M4, and X3M platforms. Designed to work with the factory intake manifold's port injection system, this fuel rail delivers superior flow and reliability over the OEM unit for builds requiring more robust fueling capability.

CNC-machined from billet T6061 aluminum, the 7-904 is built to exacting tolerances and finished with a hard anodized coating that ensures long-term durability and compatibility with ethanol-based fuels including E85. DeatschWerks engineers the rail with integrated CNC brackets for maximum rigidity—eliminating the flex and imprecision associated with bolt-on bracket designs.

Key Features:

• CNC-machined billet T6061 aluminum construction
• Hard anodized finish for ethanol (E85) and alternative fuel compatibility
• Designed for the BMW S58 factory manifold port injection system
• Integrated CNC mounting brackets for maximum rigidity and precision fitment
• Compatible with the factory port injection configuration
• Backed by DeatschWerks Limited Lifetime Warranty

DeatschWerks products undergo extensive endurance testing under extreme operating conditions to validate long-term performance. The 7-904 fuel rail is an ideal upgrade for performance S58 builds seeking reliable, high-flow fueling to support power modifications while maintaining a clean, factory-compatible installation.