BILSTEIN has a legendary reputation for providing original equipment components to many of the world’s finest vehicle manufacturers. The BILSTEIN B4 Series provides the same OEM quality and ride stability for the aftermarket. BILSTEIN uses both monotube and twin-tube technology to give the best in OE replacement driving comfort at a great economical price. *Product Benefits:* * Constant damping characteristics under any load * Consistent performance and handling give the vehicle a new car feel every time * Proven BILSTEIN gas pressure technology * High OEM quality standards *BILSTEIN B4 Air Suspension Modules* BILSTEIN engineers worked closely with Mercedes-Benz to develop a top-of-the-class suspension for their top-of-the-line models and the results are the air suspension system. The Mercedes-Benz S-Class (W220/C215) has this system to thank for its famed driving comfort and is also one of the world’s first series production vehicles to be equipped with active springs and dampers. *Product Benefits:* * High OEM quality standards * Proven BILSTEIN gas pressure technology * Responds to street and vehicle conditions in milliseconds for instant adaptivity * Provides excellent comfort and perfect driving characteristics PartNumber : bil19-227740 Description : B4 OE Replacement - Shock Absorber Series : B4 OE Replacement Title : Bilstein Shock Absorbers Finish : Black Paint Boot Included : Black Straight Upper Mount Type : Eye 12.3mm Lower Mount Type : Eye 14.5mm Internal Design : Twintube California Proposition 65 : WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov Position : Rear 2009-2013 Mazda 6 i L4.2488cc Suspension::Shocks and Struts 2009-2013 Mazda 6 S V6.3726cc Suspension::Shocks and Struts