Engineered to activate more grip for improved handling and outright performance, products are rigorously tested on the track to provide unrivalled street performance! Essential Vehicle Kit Essential front and rear vehicle kit – contains W52991, W52988, W83389, W52992, and KDT911 to ‘Activate More Grip’ Part number: WEK003 By matching key bushing, alignment and geometry products into one solution, White line Essential Kits provide bang for your buck handling upgrades that simply Activate More Grip. Essentials include upgraded chassis control bushings for the front control arms matched with the positive traction rear differential bushing kit that deliver go kart like steering and next level grip to your vehicle.