SPL Parts FKS Rear Knuckle Monoball Bushing Set (SPL RKB R35) 40080 2017-2020 BMW 430i / 430i

2017-2020 BMW 430i / 430i xDrive L4-2

This protrusion sits above the recess to offset the airflow tabulations

Dyno Proven gains of up to 25 hp and 25 lb-ft

but are supplied WITHOUT a flywheel

Premium 5-Ply Silicone

SPL Parts FKS Rear Knuckle Monoball Bushing Set (SPL RKB R35) 40080 2017-2020 BMW 430i / 430iSPL Parts FKS Rear Knuckle Monoball Bushings (RKB) replace the stock mushy rubber bushings with low friction articulating spherical bearings, eliminating bushing flex and reducing bind friction. This maintains optimum suspension geometry under load, to improve handling and feedback. Our Bushings feature FK Racing Bearings with a self lubricating Teflon liner for long life and maximum performance. Highly precise (machined to 1 1000th inch) CNC machined