BILSTEIN B4 2005 Fits Porsche 911 Carrera 4S Front Left Twintube Strut Assembly 22-147561 RB59-522K Banks hot and cold side

Banks hot and cold side tubes have up to 65% percent greater flow area than stock tubes

Made from an engineered plastic that replaces the cast alloy design of the regular hinge

Dobinsons 5 degree caster adjustment drop boxes

2012 GMC Sierra

BILSTEIN B4 2005 Fits Porsche 911 Carrera 4S Front Left Twintube Strut Assembly 22-147561 RB59-522K Banks hot and cold sideDescription Bilstein B4 OE Replacement (DampTronic) dampers are direct OE replacements for the electronically adjustable dampers found on many European brand vehicles. Bilstein B4 OE Replacement (DampTronic) dampers are specifically engineered to be the best choice for maintaining the original ride quality of your vehicle, while meeting or exceeding OE standards. Bilstein B4 OE Replacement (DampTronic) dampers are the ideal choice for the driver