Whiteline 02-07 Subaru WRX / 03-07 Impreza Non-Turbo / 04-07 STi Front Race Anti-Dive Caster KitMOTORSPORT ONLY Whiteline Anti Lift Kits are primarily designed to improve traction and cornering grip under power. By increasing static caster and improving front end geometry the new alloy mounts coupled with low compliance synthetic elastomer bushings serve to dramatically sharpen initial turn in response and reduce understeer.