This pair of patent pending adjustable front upper control arms will give ±4° camber and ±4° caster change. SPC arms match the OE design for clearance so you can maximize camber change without fender will interference. The rubber isolated xAxis sealed flex joints retain OE bushing values for Noise, Vibration, and Harshness (NVH), while providing the handling qualities of a mono-ball. Optimized geometry and high strength forged steel components make this the strongest adjustable arm on the market today. Whether you want a cambered stance, improved handling, or to minimize tire wear, this is the best arm for you. Features: -Most camber and caster adjustability on the market ±4° Camber and ±4° Caster -Best clearance of any adjustable control arm -Turnbuckle adjusters for easy on car alignment -High strength forged steel components -Optimized geometry reduces stresses to pure tension and compression for maximized strength and minimized weight -xAxis Sealed Flex Jointswith rubber isolation at the inner bushing -Sealed ball joint with high polished ball for extended wear Benefits: -Set your camber and caster where you wanit it for look, cambered appearance, driving style, improved handling and cornering - Tire wear, adjust angled to minimized tire wear -Up to +4° camber change without fender well contact -Easy to adjust -Sealed joints means no corrosion or contamination in the joints -Retain factory Noise, Vibration, Harshness (NVH) values but gain handling quality of a mono-ball with xAxis sealed flex joitn isolated by OE style bonded rubber bushing US Patent # US 2016/0059652 A1