GFB HYBRID TMS Dual Port 01-07 Subaru WRX / 05-08 Forester XT Drivetrain>Differential Bushings This means the T9381 can

This means the T9381 can be used to replace the factory diverter valve entirely rather than re-use the solenoid

0 coilovers were developed utilizing our extended-travel mono tube design and variable force valving that delivers control during on-road transit and compliance for maximum traction on the trails

Replaces that original

this system provides increased airflow

GiroDisc 380x32mm 10 Pin Holes 52mm Annulus Slotted Rings

GFB HYBRID TMS Dual Port 01-07 Subaru WRX / 05-08 Forester XT Drivetrain>Differential Bushings This means the T9381 canThe Hybrid valve is back! In 1999, GFB's first Hybrid valve pioneered the dual port design, which was so successful the technology has since been adopted by most other brands. By "staging" the two venting outlets, at low valve lifts most of the air is recirculated. As the car is driven harder, the valve opens further and more of the atmosphere venting port is exposed for a louder sound