Stock non-M arms are made from sheet metal that is merely spot welded together, which tends to flex and bend under moderate loads let alone track day or racing stresses. If you use grippier tires and an engine with more torque, then the stock arms aren't able to provide stability and consistent handling. BMW E9X/E8X Rear Upper Arms, which include both the guide (traction) and camber (wishbone) arms, feature gun drilled 2024 Aluminum links that are Black Anodized to prevent corrosion and provide a durable finish. Our exclusive 360 rotating 6061-T6 Aluminum Clamps allow quick, precise adjustment with Blue Anodized Titanium Socket Head Cap Screws, which shaves even more unsprung weight without compromising strength. Custom 3 piece FK Bearings Rod Ends manufactured in Connecticut feature a Teflon liner to provide quiet operation, low friction, smooth articulation, and eliminates bushing deflection under load. The PTFE linet is chemically bonded to the inner diameter of the race. The liner offers a very high load carrying capacity and has greatly increased dynamic wear characteristics. The operating temperatures of the liner ranges from -65&ordm

This Part Fits:

Year	Make	Model	Submodel
2011	BMW	1 Series M	Base
2008-2013	BMW	128i	Base
2008-2013	BMW	135i	Base
2013	BMW	135is	Base
2006	BMW	325i	Base
2006	BMW	325xi	Base
2007-2013	BMW	328i	Base
2009-2013	BMW	328i xDrive	Base
2007-2008	BMW	328xi	Base
2006	BMW	330i	Base
2006	BMW	330xi	Base
2009-2011	BMW	335d	Base
2007-2013	BMW	335i	Base
2009-2013	BMW	335i xDrive	Base
2011-2013	BMW	335is	Base
2007-2008	BMW	335xi	Base
2008-2013	BMW	M3	Base