27mm, Whiteline heavy duty rear sway bar mounting saddle kits are designed to replace the original equipment mounts with a stronger more rigid forged alloy version. This Whiteline kit improves sway bar response and should be used for large diameter or adjustable sway bars especially when running the stiffer sway bar settings as factory mounts will twist/ flex and potentially fail prematurely., 3 Year / 60,000Kms