Precision Raceworks S58 Port Injection Kit – BMW G8X M2/M3/M4

Overview

Adding port injection to the S58 has traditionally meant sourcing an expensive custom manifold. The Precision Raceworks S58 Port Injection Kit solves that by working with the factory manifold — no aftermarket manifold purchase required. It integrates cleanly enough that it's barely visible once the car is reassembled, and it's built around the same AN6-bore-throughout fuel rail design PRW uses across their B58 kits, avoiding the pressure-drop problems seen in cheaper plate-style kits.

SPECS

• Stock manifold compatible: Works with the factory S58 manifold — no need to purchase an expensive custom manifold to run port injection
• Full AN6 fuel rail: True AN6 bore throughout, not just at the fitting — avoids the pressure-drop problem seen in cheaper kits with narrow internal bores
• Injector-locking rail: Built-in locks secure each injector to the fuel rail, preventing potential failure from fuel pressure force and allowing rail removal without excessive fuel spillage
• Injector options: Available with or without genuine Bosch Motorsport injectors (750cc or 950cc) — useful if you already have compatible injectors or want to choose your own
• E85 compliant: 100% compatible with E85 and other ethanol blends
• Color options: Available in Black, Blue, or Silver anodized finish

PARTS INCLUDED

• Full AN6 fuel rail with billet fittings and injector locks
• Smooth-bore PTFE fuel lines with stainless/nylon braiding
• Genuine Bosch injectors with certificate of conformance (injector-inclusive configuration only)

TECH RESOURCES

• Installs seamlessly like a factory part — no aftermarket manifold needed.
• Simply pick this kit up and pair it with your favorite injector controller (e.g. Motiv Re|Flex+).
• Not for sale or use in the state of California on any pollution-controlled vehicle per CARB.
• Professional installation and a proper tune are strongly recommended before relying on the added fueling capacity.
• PR S58 Port Injection Kit | Installation Guide (YouTube Video)

Part Number: 601-0279

Vehicle Application