Rvng G80/G82/G87 X3M/X4M S58 Port Injection Kit

⚠️ (THIS PRODUCT IS FOR OFFROAD & RACE USE ONLY)
Not 50-state compliant — may not be legal for street use depending on your state's emissions laws. See our Off-Road Use Disclaimer for full details.

RVNG S58 Port Injection Kit

The RVNG S58 Port Injection Kit, available from Rvng RaceWorks, is engineered to provide reliable supplemental fueling for high-horsepower S58 builds while retaining the factory intake manifold. This premium Port Injection Kit delivers the additional fuel capacity needed to support demanding performance applications without compromising OEM fitment.

Designed to integrate seamlessly with factory components, the system maintains a clean installation without requiring a custom intake manifold. Whether you're building for the street or the track, this S58 Fuel System Upgrade offers dependable fueling, precise fitment, and the performance enthusiasts expect from Rvng RaceWorks. Follow Rvng RaceWorks on Instagram to explore customer builds, product installations, and the latest high-performance upgrades.

This kit delivers true multi-port injection and is compatible with all fuel types including full E85. It is available with or without injectors. Injector-equipped kits include genuine Bosch Motorsport injectors that are modified and flow matched both statically and dynamically. Flow data is included to support accurate and consistent tuning.

The RVNG fuel rail features a true full-bore AN6 internal design to prevent pressure drop under high load. Integrated injector retention locks mechanically secure each injector to the rail, reducing stress on the factory plastic intake manifold and allowing the rail to be removed without fuel spill during service.

All fuel lines are smooth-bore PTFE paired with motorsport-grade billet fittings. No rubber hose or plastic fittings are used. The kit includes all required hardware and is compatible with popular injector controllers such as ReFlex, AIC, and JB4-based systems.

Key Specifications:

• Fits all BMW S58 engines
• Compatible with the factory intake manifold
• Optional genuine Injector Dynamics 1050cc and 1300cc injectors
• Flow matched to 2 percent or better
• Supports full E85
• Full-bore AN6 fuel rail
• Smooth-bore PTFE fuel lines
• All hardware included