ACL Rod Bearings for F8X BMW M3/M4 (4B1584HX-STD) Ohlins The 4" tip is available

The 4" tip is available with a burned/colored finish or brushed with no color added

Cusco Pillowball Upper Mounts give you control over unwanted forces under acceleration and braking

keeping good ductility beneath the hard nitrided layer (microhardness is 800HV minimum)

BMW 11287571377

ACL Rod Bearings for F8X BMW M3/M4 (4B1584HX-STD) Ohlins The 4" tip is availableACL Race Series performance engine bearings are manufactured to exacting tolerances for the S55 engine. Micron tolerance machining supported by precision measurement systems delivers consistent accuracy to key characteristics like wall thickness and crush. This ensures reliable fit and helps maintain consistent clearances. Engine Fitment: 2015 2018 BMW M3 (F80) 2015 2020 BMW M4 (F82 F83) 2019 2021 BMW M2 Competition CS (F87) (S55 3. 0L Twin Turbo