Get ready for the track with this four (4) arm set of adjustable upper links for the Audi B9 platform. This kit has four arms so you can change camber and caster - 1.5deg on both sides. xAxis sealed flex joints replace the compliant inner bushings with a free pivoting, minimum compliance, joint. You will feel the difference in handling. Forged 6061 - T6 Aluminum construction for maximized strength at minimum weight OE style, maintenance free, booted ball joints Large 18mm threaded adjusterlinks Replacement pinch bolts included xAxis sealed flex joints replacing overly compliant OE inner bushings with a free pivoting, minimum compliance joint. Warning You will also hear the difference, the OE bushings are designed to absorb and negate noise, vibration, and harshness (NVH). This set of arms will transmit road noise into the cabin. California Residents WARNING