GFB 6708 Flange Adaptors – Precision Blow‑Off Valve Flange Adapter

GFB 6708 Flange Adaptors – Precision Blow‑Off Valve Flange Adapter

Upgrade the fitment of your GFB blow‑off valve with the genuine GFB 6708 Flange Adaptors, designed to suit T9003 and T9503 series GFB valves and compatible with Subaru WRX/STI applications. These high‑quality flange adapters allow older BOV bases to interface with specific vehicle inlet flanges while maintaining reliable sealing and performance.

🔧 GFB 6708 Flange Adaptors – Precision Blow‑Off Valve Flange Adapter Product Highlights

• Direct Replacement Flange Adaptor: Compatible with GFB T9003 / T9503 blow‑off and diverter valves, ensuring seamless integration into triangular‑flange setups on vehicles like the WRX/STI.
• Premium Quality Construction: Made to GFB’s exacting standards — robust and durable, suited for repeated boost cycles and high‑performance conditions.
• Australian‑Engineered: As with all GFB components, this adaptor is designed by the Australian performance specialists at Go Fast Bits.
• Easy Installation: Simple flange bolt‑on design means fast replacement or retrofit with minimal modifications.
• Compact & Lightweight: Typical weight ~0.1 kg with compact dimensions ~15 × 7.5 × 3 cm — ideal for streamlined installations.

🚗 Application & Fitment

This adaptor is particularly popular with Subaru WRX/STI owners and tuners who need a cone‑style triangular flange for their GFB blow‑off valve base when upgrading or servicing turbo boost control systems.

📌 Why It Matters

Using the correct flange adaptor ensures that your blow‑off valve mounts securely and seals properly against the inlet flange — which helps prevent boost leaks, maintain consistent pressure, and support overall engine performance.