SPL Parts FKS Series Non-Adjustable BMW F2X/F3X Front Caster Rod Bushings (CRBN) replace the stock flexible rubber bushings with low friction, articulating Spherical Bearings eliminating bushing deflection and reducing friction. This maintains optimum suspension geometry under load to improve braking and handling feedback. Massive 1" sized FK Racing Bearings with self lubricating Teflon liners are used to ensure maximum performance and durability. Sold as a pair. Made in the USA. SPL Parts BMW F2X/F3X Caster Rod Bushings Features: 6061-T6 Aluminum bearing housing with outer knurl FK Teflon lined 1" spherical bearings Applications: 2010+ F2X 2011+ F3X **Please note these will not fit xDrive/AWD vehicles** Installation Instructions: SPL CRBN F3X