Description

THIS IS A PRESALE, ONCE PURCHASED THEY WILL BEGIN SHIPPING LATE MAY OR EARLY JUNE. IT IS POSSIBLLE THEY SHIP SOONER BUT PLEASE BE PATIENT ONCE ORDER IS PLACED.

PLEASE SELECT THROTTLE CONFIGURATION WHEN ORDERING.

RK Autowerks X58 Coreless Manifold – Billet Port Injection

The RK X58 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

• 4 additional x 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

• Phenolic spacer

• All necessary installation hardware

• Throttle body adapter depending on engine version

Compatible with the models below

Toyota Supra – A90/A91 (2020+)

BMW S58 Engines, Including:

• M2 – G87 (2021+)

• M3 – G80 (2020+)

• M4 – G82 / G83 (2020+)

• X3M / X4M – F97 / F98 (2019+)

BMW B58 Gen 2 Engines, Including:

• M340i / M440i – G20 / G22 (2019+)

• M240i – G42 (2021+)

• Z4 M40i – G29 (2018+)

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

• 540i – G30 / G31 (2020+)

• 740i – G12 (2020+)

• 840i – G14 / G15 / G16 (2020+)

• X5 / X6 / X7 40i – G05 / G06 / G07 (2018+)

BMW B58 Gen 1 Engines, Including:

• 340i 440i | F30 | 2015-2019 | Gen 1
• M240i | F22 | 2016+ | Gen 1
• X3 X4 M40i | G01 G02 | 2018-2019 | Gen 1
• 540i | G30 | 2017-2019 | Gen 1
• 740i | G12 | 2016-2019 | Gen 1

Installation & Support

• Direct bolt-on using OEM mounting locations

• Full clearance for factory service points

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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