BMW S58 Billet Intake Manifold Air to Air

RK Autowerks Billet Intake Manifold Air to Air

RK Autowerks S58 Coreless 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
6x 1/8″ NPT Secondary ports for Meth/Nitrous
4x Additional 1/8″ NPT secondary ports for Meth/Nitrous
OEM Oil filter access retained
Compatible with factory gasket and hardware

What’s included:

Billet manifold
-8AN ORB fuel rail

All necessary installation hardware

Designed to replace BMW Part #17 51 8 053 321, 17518053321 

BMW S58 Applications:

2 Series

2023-Present     G87     M2

3 Series

2021-Present     G80     M3

4 Series

2021-Present     G82/G83     M4

X3 Series

2019-Present     F97     X3M

X4 Series

2019-Present     F98     X4M