RK AUTOWERKS MANIFOLD (GEN2 B58) – BILLET PORT INJECTION

Designed, machined, and welded entirely in-house at our shop in Fort Worth, TX, this billet manifold is engineered for high-performance Gen 2 B58 applications. With an upgraded intercooler core and support for port injection, it’s built for enthusiasts pushing well beyond stock power levels. Fuel rail included. Injectors and a port injection line kit are required and not included.

FOR INJECTORS & PORT INJECTION FUEL LINE KIT:

• ADD RVNG Port Injection Full Fuel Line (S58 / GEN2 B58)

KEY FEATURES:

• 70% larger intercooler core (Wagner Tuning) for improved thermal efficiency
• Thermal (phenolic) spacer to reduce heat soak between engine and manifold
• Integrated -8AN ORB fuel rail (included)
• Supports EV14K Body (Bosch Shorty) injectors
• 6 x 1/8″ NPT secondary ports for meth/nitrous
• 3 x 1/8″ NPT auxiliary ports for accessories (e.g., boost reference)
• Coolant return line with OE fitting included
• OEM oil filter remains fully accessible

DESIGNED FOR BMW GEN1 B58 ENGINES, INCLUDING:

• M340i / M440i – G20 / G22 (2019+)
• M240i – G42 (2021+)
• Toyota Supra – A90/A91 (2020+)
• 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+)

INSTALLATION & SUPPORT

• This manifold is designed for plug-and-play fitment using OEM mounting points. Please note that if you are not using port injection, you will need to purchase blanks. Precision Raceworks sells the blanks very cheap.

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 quality fitment and performance. Trusted by enthusiasts and tuners for reliable power delivery on street and track builds alike.

We keep RK Autowerks Intake Manifold in stock, but quantities may be limited. Please contact us to confirm availability before purchase if needed.