Designed for the demands of high-performance builds, the Manley H-Beam Connecting Rod Set is the perfect upgrade for BMW/Toyota B58 engines. Manufactured from premium 4340 steel forgings, these rods offer a lightweight construction without compromising strength. Engineered to replace BMW part numbers #11248623419 and #11247589671, the 148mm-length rods are ideal for high-horsepower and forced induction applications. Whether you’re tuning for street, track, or drag racing, these rods can handle up to 8500 RPM and support engines producing up to 1200 horsepower. Each set includes ARP 2000 rod bolts, providing additional clamping force and reliability under extreme conditions. Precision Engineering for Maximum Reliability:Manley’s H-Beam rods undergo advanced manufacturing processes, including: Heat treatment and stress relief for durability under heavy loads. Shot peening to increase fatigue resistance. Magnaflux inspection for detecting any micro-cracks. Weight-matched to within +1.5 grams to ensure perfect balance across all cylinders. Tapered Small-End Design ensures compatibility with both OEM and aftermarket pistons. This precision-crafted set ensures valvetrain stability, enhanced engine balance, and long-term performance, making it a trusted choice for enthusiasts building high-boost or high-RPM B58 engines. BMW B58 Gen 1 Applications: 1 Series 2016-2019 F20/F21 M140i 2 Series 2016-2019 F22/F23 M240i 3 Series 2015-2019 F30/F31 340i / 340i xDrive2016-2019 F34 340i GT / 340i GT xDrive 4 Series 2016-2020 F32/F33/F36 440i / 440i xDrive 5 Series 2016-2019 G30/G31 540i / 540i xDrive 6 Series 2017-2019 G32 640i GT / 640i GT xDrive 7 Series 2015-2019 G11/G12 740i / 740i xDrive X3 Series 2017-2019 G01 X3 M40i X4 Series 2018-2019 G02 X4 M40i 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 ALPINA B58 Gen 2 Applications: B3 Series 2020-Present G20/G21 B3 B4 Series 2022-Present G22 B4 B5 Series 2020-Present G30 B5 XB7 Series 2020-Present G07 XB7 Toyota B58 Gen 2 Applications: A90 / A91 Supra 2020-Present GR Supra 3.0 2020-Present GR Supra 3.0 Premium 2021-Present GR Supra 3.0 A91 Edition