SPC Performance Audi B9 Upper Control Arm Front Right

If you're looking to fine-tune the front suspension on your Audi B9, these adjustable upper control arms from SPC Performance are a solid option. This is the front right arm, designed to let you dial in your camber and caster settings. It's built for a range of Audi models including the A4, A5, S4, and S5, allowing for adjustments of plus or minus 1.5 degrees.

SPC uses forged 6061-T6 aluminum for these arms, which means they're strong without adding unnecessary weight. They also incorporate OE-style booted ball joints and bonded rubber bushings. This approach helps maintain the factory ride quality and keeps noise, vibration, and harshness (NVH) in check, so you don't sacrifice comfort for adjustability. The arms feature large 18mm threaded adjuster links for making those changes, and they come with replacement pinch bolts to make installation straightforward.

While the factory doesn't publish a specific caster angle, SPC recommends aiming for 5 to 6 degrees of caster for better tracking and steering wheel return-to-center feel on these cars. This kit is for the right side only; if you need the left side, you'll want part number 81381, or part number 81383 if you want to adjust both sides.