GFB HYBRID TMS Dual Port 98-04 Subaru Forester XT Suspension>Sway Bar Brackets Most kits offer pedal loads

Most kits offer pedal loads 10-20% higher than stock

Pro-Series filters feature an indestructible electroless nickel finish

Flow makes power

Designed as a direct replacement for the factory manifolds

Fully submersible for custom

GFB HYBRID TMS Dual Port 98-04 Subaru Forester XT Suspension>Sway Bar Brackets Most kits offer pedal loadsThe 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