If you’re looking for a performance lowering shock absorber or strut, the BILSTEIN B8 Sport Series is up to the task. Designed to enhance your car’s lowered suspension, BILSTEIN’s monotube gas pressure technology features delivers a sport ride with remarkable comfort. *The product benefits at a glance:* * Monotube gas pressure construction * High-performance shock absorbers and struts designed specifically for lowering springs and production sport vehicle * Sport-tuned with a high level of comfort * Precision handling and optimized vehicle control * Road-tested and fine-tuned by BILSTEIN PartNumber : bil34-181546 Description : B8 Performance Plus - Suspension Strut Cartridge Series : B8 (SP) Boot Included : Blue Bellows Internal Design : Monotube Lower Mount Type : Base Cup Upper Mount Type : Stem Finish : Yellow Paint Title : Bilstein Shock Absorbers Series : B8 Performance Plus California Proposition 65 : WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov Position : Front 1982-1988 BMW 528e Base L6.2693cc Suspension::Shocks and Struts 1983-1984 BMW 533i Base L6.3210cc Suspension::Shocks and Struts 1985-1988 BMW 535i Base L6.3430cc Suspension::Shocks and Struts 1988 BMW 535is Base L6.3430cc Suspension::Shocks and Struts 1983-1984 BMW 633CSi Base L6.3210cc Suspension::Shocks and Struts 1985-1989 BMW 635CSi Base L6.3430cc Suspension::Shocks and Struts 1988 BMW M5 Base L6.3453cc Suspension::Shocks and Struts