Service kit - suits Whiteline KCA313 roll centre/bump steer kit, A must for lowered vehicles, Whiteline roll centre, bump steer and camber correction kits are designed to correct roll-centre geometry using specially engineered ball-joints. Raising the front roll-centre results in a substantial increase to front roll resistance and a significant reduction in suspension compression of the outside front wheel during cornering. The result is more even weight distribution and improved tyre contact ultimately improving front end grip and cornering speeds., Limited Lifetime Warranty