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 Titanium Series 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 -65º to 325ºF, offering robust reliability for both street and track use.
Sold as a pair. Kit contains 4 arms.
Made in the USA.
From full racing to high performance street applications, our suspension products provide adjustability and increased performance for custom alignment needs. The highest quality construction and innovative features are the reasons why our products are not only chosen by the top race teams, but also by consumers demanding the best alignment products for their high performance street cars. USA sourced materials with certification ensure our products are built with the best materials, CNC machining by local machine shops with years of high tech machining experience, to meet our exacting tolerances. TIG welding is performed by local professional welders with years of experience, to ensure the highest quality welds for maximum strength. All parts are hand fitted to ensure good fit and smooth threading. Anti-seize and 3M internal panel coating applied where necessary for protection.
SPL Parts designs and builds top shelf suspension components for street and track cars including Nissan, Infiniti, Scion, Subaru, Porsche and more.
+ In-house research and development. We design and use the products, we can provide total support to our customers.
+ Spherical bearings with Teflon liners, are self cleaning and self lubricating, providing high performance and long life.
+ Innovative adjuster design, quicker alignments and proper bearing centering.
+ Made with pride in USA by skilled machinists/welders
⚠️ PROP 65 WARNING
WARNING: May contain items that are found to have compounds and/or chemicals known to the State of California to cause cancer, birth defects, and reproductive harm. For more info, please visit P65Warnings.ca.gov