B58 Gen2 Billet Intake Manifold

This in-house designed, machined, and welded billet intake manifold from RK Autowerks delivers a performance-focused solution for Gen 2 B58 engines operating well above factory power levels.

Built in Fort Worth, Texas, it features a significantly upgraded intercooler core and full support for port injection, making it a strong foundation for high-boost, high-output builds.

A matching fuel rail is included; injectors and a port injection line kit are required and sold separately.

Key Features 70% larger Wagner Tuning intercooler core for improved thermal efficiency Thermal phenolic spacer to reduce heat transfer and minimize heat soak Integrated -8AN ORB fuel rail (included) Compatible with EV14K-body (Bosch Shorty) injectors Six 1/8" NPT secondary ports for meth or nitrous systems Three 1/8" NPT auxiliary ports for accessories such as boost reference Coolant return line with OE-style fitting included Maintains full access to the OEM oil filter Offered in raw aluminum finish Engineered to replace BMW Part #11 61 8 647 977, 11618647977 BMW B58 Gen 2 Applications: 3 Series 2019-Present G20/G21 M340i / M340i xDrive 4 Series 2020-Present G22/G23/G26 M440i / M440i xDrive Z Series 2019-Present G29 Z4 M40i 5 Series 2020-Present G30/G31 LCI 540i / 540i xDrive 6 Series 2020-Present G32 LCI 640i GT / GT 640i xDrive 7 Series 2019-Present G11/G12 LCI 740i / 740i xDrive X3 Series 2020-Present G01 X3 M40i X4 Series 2020-Present G02 X4 M40i X5 Series 2018-Present G05 X5 xDrive40i X6 Series 2019-Present G06 X6 xDrive40i X7 Series 2018-Present G07 X7 xDrive40i Toyota B58 Gen 2 Applications: A90 / A91 Supra 2020-Present GR Supra 3.0 Premium 2021-Present GR Supra 3.0 A91 Edition After placing your purchase, please contact Sales@5150AutoSport.com with your vehicle VIN to verify fitment.