The Meyle 5-Piece M3 Control Arm Upgrade Kit - 471984 is a comprehensive kit designed for upgrading the control arms of a car. This kit includes five different pieces, each serving a specific purpose in enhancing the performance of the control arms. The contents of the kit include a control arm, a ball joint, a bushing, a mounting bracket, and a hardware set. These components work together to improve the stability, handling, and overall performance of the car's control arms. The kit is suitable for a wide range of car models and is an ideal choice for those looking to upgrade their vehicle's suspension system.