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2009 BMW 328Xi Sedan (E90)
2017 BMW X6 AWD (F86)
Bilstein B4 OE Replacement Dampers for the 1988-1989 Audi 90 are specifically engineered to be the best choice for maintaining the original ride quality of your vehicle
Every kit is extensively tested on the Y20 chassis and refined until it balances ride quality with performance — the reason XC60 coilovers from BC Racing are the best-selling adjustable kits in their segment worldwide
25mm drop — corrects rear suspension geometry on lowered ZN6 chassis
Swift Springs Standard Conventional Spring (Progressive) - OD: 5" / Length: 6.7" Spring Rate (lbs/inch):600 2009 BMW 328Xi Sedan (E90)Swift Springs Standard Conventional Springs (Progressive) in 5" OD and 6. 7" length feature a dual rate design purpose built for circle track racing applications that require a softer initial rate transitioning to a stiffer rate under heavy load. This 5" OD Swift progressive race spring is manufactured in Japan from proprietary H5S. TW high tensile alloy steel, delivering the variable rate behavior that helps circle track racers maintain traction
