Description

RK Autowerks S58 Race Manifold – Billet Port Injection

The RK S58 billet manifold is engineered in-house for high-boost and competition-level applications. Designed to support port injection and optimize airflow, this race-ready manifold offers strength, consistency, and flexibility for serious builds. Integrated fuel rail included. Injectors and port injection line kit required (not included).

Key Features:

• CNC-machined from 6061 billet aluminum

• Integrated -8AN ORB fuel rail (included)

• Supports Bosch EV14K (Shorty) injectors

• 6 x 1/8″ NPT secondary ports for meth/nitrous

• 3 x 1/8″ NPT auxiliary ports for sensors or boost reference

• OEM oil filter access retained

• Compatible with factory gasket and hardware

• Available in raw aluminum or thermal black finish

Designed for BMW S58 Engines, Including:

• M2 – G87 (2021+)

• M3 – G80 (2020+)

• M4 – G82 / G83 (2020+)

• X3M / X4M – F97 / F98 (2019+)

Installation & Support

• Direct bolt-on using OEM mounting locations

• Full clearance for factory service points

• Installation support and guidance available from our team

Why Choose RK

Each RK billet manifold is designed, machined, and assembled in-house in Fort Worth, TX. Trusted on high-horsepower builds, our manifolds are made with precision and durability in mind—no outsourcing, no compromises. Built for performance, proven on record-setting cars.

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