GFB Hybrid BOV Dump Valves For Subaru Impreza Classic 93-98 / Toyota Supra Mk4 JZA80 Product_DV+ SPECIFICATION : Stage 4 -

SPECIFICATION : Stage 4 - 600bhp

Mitsubishi Evo 4

Honda Integra 2

Including a flexi joint in the downpipe means that the rest of the exhaust system can flex independently from the front of the downpipe (along with the turbo elbow and manifold) which helps to prevent cracking of the elbow and manifold

GFB Hybrid BOV Dump Valves For Subaru Impreza Classic 93-98 / Toyota Supra Mk4 JZA80 Product_DV+ SPECIFICATION : Stage 4 -All the Performance with the Noise! The Hybrid valve is back! In 1999, GFBs 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. As a benefit, this system makes