Description

RK Autowerks B58 Billet Port Injection Manifold – Gen 1 

This version of our billet port injection manifold for the B58 Gen 1 platform includes an integrated fuel rail. It is designed to support high-power builds requiring additional fueling through port injection. Injectors and a port injection line kit are required to complete the system.

No fuel lines are included with this configuration — ideal for customers running custom fuel setups.

Key Features

• CNC-machined from 6061 billet aluminum

• Integrated -8AN ORB fuel rail

• Supports Bosch EV14K (Shorty) injectors

• 6 x 1/8″ NPT ports for meth/nitrous

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

• Full access to OEM oil filter

• Direct bolt-on fitment

• Available in raw aluminum or thermal black finish

Designed for BMW B58 Gen 1 Engines, Including:

• 340i / 440i – F30 (2015–2019)

• M240i – F22 (2016+)

• X3 M40i / X4 M40i – G01 / G02 (2018–2019)

• 540i – G30 (2017–2019)

• 740i – G12 (2016–2019)

For fitment questions, contact our team at sales@rkautowerks.com for assistance.

Installation & Support

This manifold is designed for plug-and-play fitment using OEM mounting points. Installation guides and support are available through our resource center or by contacting our tech team directly.

Why Choose RK

RK Autowerks manifolds are engineered and built in-house in Fort Worth, TX. We don’t outsource. Every unit is CNC-machined and hand-assembled for precise fit and performance. Trusted on street builds and world-record track cars alike, this is the same manifold platform we use in our own 1000+ WHP vehicles.

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