GFB HYBRID TMS Dual Port 15+ Subaru WRX / Forester

All The Performance With The Noise! The 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 the Hybrid is a dual outlet valve for combined recirc and atmosphere venting, this system makes it possible to be used on cars with sensitive airflow meters. Subaru 2015-on WRX/ Forrester Fitment: Subaru Forester 2.0XT Premium 2014 Subaru Forester 2.0XT Premium 2015 Subaru Forester 2.0XT Premium 2016 Subaru Forester 2.0XT Premium 2017 Subaru Forester 2.0XT Premium 2018 Subaru Forester 2.0XT Touring 2014 Subaru Forester 2.0XT Touring 2015 Subaru Forester 2.0XT Touring 2016 Subaru Forester 2.0XT Touring 2017 Subaru Forester 2.0XT Touring 2018 Subaru WRX Base 2015 Subar