RK Autoworks B58 Gen 1 Billet Intake Manifold with Port Injection

The RK Autowerks Billet Intake Manifolds for the B58 and S58 platforms are exceptional and some of the best we've seen when tuning at Racebox. They're also made 100% in America, so you're supporting a local Texas business!

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The B58 Gen1 Billet Port Injection Manifold is designed, machined, and welded in-house at our Fort Worth, Texas facility. Engineered for plug-and-play fitment using OEM mounting points.

Intercooler Integration

• Wagner Tuning core, approximately 70% larger than stock
• Thermal phenolic spacer minimizing heat soak
• Coolant return line with OEM fitting included

Port Fuel Injection System

• Eight-port configuration with included fuel rail
• 8AN ORB fittings
• Compatible with EV14K body injectors (Bosch Shorty)

Auxiliary Ports

• Six secondary ports for nitrous/methanol injection (1/8 NPT)
• Three additional 1/8 NPT ports for accessories and boost reference
• OEM oil filter remains accessible

Material & Finish

Raw aluminum construction

Fitment

• BMW 340i / 440i (F30/F32, 2015-2019)
• BMW M240i (F22, 2016+)
• BMW X3 / X4 M40i (G01/G02, 2018-2019)
• BMW 540i (G30, 2017-2019)
• BMW 740i (G12, 2016-2019)

Weight: 24.5 lbs | Dimensions: 27 x 14 x 9 in