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BMW G8X M3 M4 Rear Upper Arms are essential for maintaining optimal rear camber and minimizing tire wear for both street and track driving. The stock BMW setup can lead to excessive negative camber, especially noticeable in lowered vehicles, resulting in premature tire wear and reduced traction. These adjustable Rear Upper Arms provide a broad range of adjustment for precise rear camber alignment, crucial for both performance and longevity.
Upgrade your BMW G8X M3 or M4 with these Rear Upper Arms for superior performance, durability, and ease of adjustment.
SPL Tie Rod Ends for the BMW G8X, G2X, and G42 allow for bumpsteer adjustment by allowing the tie rod end pivot to be relocated with the use of spacers. On lowered cars, this results in less dynamic toe change (aka bumpsteer) as the suspension compresses (bump) during cornering and over rough roads, resulting in more predictable handling, less tire shoulder wear, and better stability over rough roads and track curbing.
Benefits
Bumpsteer Correction
Lightweight: 1.49 lbs (0.68 kg) per Side (3% Lighter than OEM)
Improves Steering Feel, Handling, and Stability Over Bumps, Especially While Braking/Turning
Reduced Front Tire Toe Wear on Lowered Cars
Improved Geometry to Maximize Articulation and Droop Travel
Maintenance-Free, US Made, PTFE-Lined FK Bearings
Materials
6061-T6 Aluminum Tie Rod Body
4140 Chromoly Steel Tapered Stud
304 Stainless Steel 1/8" Spacers
Ti-6Al-4V Titanium Hardware (Anodized Blue)
SPL Parts is a performance suspension manufacturer that designs and tests their products all in-house here in the USA. Additionally, all materials used are sourced from American suppliers to ensure consistently high quality products. SPL Parts products are all constructed using chromoly seamless straight tubing, DOM mandrel bent tubing, and 6061 and 2024 aluminum for high strength and quality. All TIG welding and CNC machining is also done locally by professional welders and machine shops to meet exact quality standards and tolerance specifications. For anything from racing to street driven needs, SPL Parts offer an amazing line of premium qulaity products that are perfect to get your car back in spec.
This wrench is the perfect addition to your tool box. Made specifically for the SPL hybrid adjusters, it will not damage the finish and is small enough to make the needed adjustments in very tight spaces. Plus, this adjustment wrench comes with a bottle opener built in! Great for cracking open a cold one in your garage or at the track. This wrench is black anodized for looks and corrosion resistance and, as always, is made in the USA!
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
05-03-2026