The Whiteline rear subframe Posi-Traction kit for 2008-and-up Impreza/WRX/STi replaces rear subframe bushings to reduce misalignment and rear crossmember movement, providing a firmer rear-end feel during cornering. The kit uses Whiteline’s synthetic elastomer bushings, protective plating on metal parts, internal grease reservoirs and includes an install guide and supplied high-pressure grease.
Whiteline 08-17 Impreza/WRX/STI Rear Subframe Posi Traction Kit