Bilstein B6 monotube strut assembly for 2015–2017 Subaru WRX and WRX STI front left applications is a vehicle-specific upgrade to original dampers. The B6 Performance damper features a 36mm monotube design and application-tuned valve settings to work with the factory spring. It is intended to improve handling and ride control while meeting Bilstein quality and testing standards.
Bilstein B6 2015-2017 Subaru WRX - STI Front Left Monotube Strut Assembly