The Bilstein B6 24-168014 is a rear 46mm monotube strut assembly built on the brand's yellow gas-pressure monotube platform. The manufacturer describes the B6 as a bolt-on upgrade that is tuned firmer than OE and designed to keep your factory springs, so the ride height stays stock. The B6 also uses a larger working piston than conventional designs, which the manufacturer says gives sharper damping. Compared with a budget strut, that means steadier rear body control under braking, cornering, and highway lane changes, without lowering the car or changing its springs.
Fitment is where buyers need to be careful. Sources disagree on the exact model years and trims covered, so match your VIN against the manufacturer's application data before ordering. Owners on user forums note that the Regal's optional active suspension uses a different rear shock, and that the official Bilstein North American Regal catalog lists only the B6 and B8 rear units. Because the B6 is designed to fit per axle, you can upgrade just the rear, which is useful for owners who want firmer rear damping for a bike rack or hitch load. Searchers looking for a 2011-2014 Buick Regal rear strut upgrade, a 2013-2014 Malibu rear monotube strut, or a Bilstein B6 rear-only upgrade will find this unit's fitment and purpose described here.
Owners on user forums report that the active-suspension rear shock is a different part from the conventional unit. Confirm your car's suspension type with the manufacturer before ordering.
Yes. The manufacturer states the B6 can be fitted per axle, including rear only. Confirm the quantity included per order with the manufacturer.
No. The manufacturer designs the B6 to work with factory springs without lowering the vehicle.