We specify that the manufacturer use a 25% more stiff grade of rubber known in the industry as 85 shore. 85 shore refers to the rubbers density or hardness value. Oem is 65 shore and the factory European rs models use 85 shore; it suffers from less deflection, maintains more precise alignment and gives you the same repetitive feeling corner after corner. With aircooled 911 's going up so much in value these days, we wanted to create suspension parts that look 100% oem, but also offer sportier handling without being too stiff for street use. They are manufactured in europe by an OEM supplier using the finest materials available (high carbon steel, 7075 t6 aluminum and 85 shore rubber). Upgrade yours today! Sold individually. Right and left needed for the rear axle. Tech tip: washer and lock nut are included for easy installation. But now is the time to replace the old worn hardware as well. Below is a list of what is also suggested for installation. 1 qty. Hex head bolt m12x1.5x60 90008203502 1 qty. Lock nut vm 12x1.5 90091004602

This item may need to be sourced from Germany and would take 2-4 weeks to arrive. Once ordered it cannot be canceled. Please call to check stock or request expedited shipping.