Accessories:Does this product replace a specific part or function?yesProduct major function & usage:Stabilize and adjust shockIs this part adjustable? If yes ¡¦ how and why/purpose?-How: Stabilize shock on different positioning holes.Purpose: Adjust the angle of the shock .Major advantages of upgrading to this product:1. Made with a quality light weight high tensile strength aluminum 6061 T6 for good sturdiness and support.2. Multiple positioning holes to adjust angle of the shocks to suit different driving condition.