B58 Valve Guides

Our HD bronze valve guides for the BMW B58 engine are engineered for high-performance, high-boost applications where OEM materials reach their limits. These guides replace the factory BMW valve guides in the cylinder head (intake and exhaust assemblies). Built to withstand elevated temperatures, increased valve spring pressures, and sustained high RPM operation, they deliver exceptional stability and durability under demanding conditions. Machined from high-quality bronze alloy, they provide improved heat dissipation and significantly reduced wear compared to factory components. The result is more consistent valve control, enhanced sealing, and extended service life in performance-built engines. Perfect for turbocharged street builds, track-focused cars, and full race applications, these guides are a critical upgrade for anyone pushing the B58 platform beyond factory performance. Precision-built for reliability under pressure. Sold as a complete set: 12x Intake Guides 12x Exhaust Guides BMW B58 Applications: BMW 1 Series 2016–2021 BMW M140i (F20/F21) BMW 2 Series 2016–2021 BMW M240i (F22/F23) 2022–Present BMW M240i (G42) BMW 3 Series 2016–2018 BMW 340i (F30/F31) 2019–Present BMW M340i (G20/G21) BMW 4 Series 2016–2020 BMW 440i (F32/F33/F36) 2021–Present BMW M440i (G22/G23/G26) BMW 5 Series 2017–2023 BMW 540i (G30/G31) BMW 7 Series 2016–2022 BMW 740i (G11/G12) BMW 8 Series 2018–Present BMW 840i (G14/G15/G16) BMW X Series 2018–Present BMW X3 M40i (G01) 2019–Present BMW X4 M40i (G02) 2019–Present BMW X5 xDrive40i (G05) 2019–Present BMW X6 xDrive40i (G06) 2019–Present BMW X7 xDrive40i (G07) BMW Z Series 2019–Present BMW Z4 M40i (G29) Toyota (BMW B58 platform) 2019–Present Toyota Supra GR (A90/A91)