GFB Hybrid Dual Outlet Blow Off Valve Direct Fitment. (Toyota Supra Mk4 JZA80 2JZ, Subaru Impreza Turbo Classic 92-98) Genuine Item (T9220). The GFB Hybrid Dirverter Blow Off Valve has the Dual Port Design that at low Revs most of the Air to be recirculated to prevent the vehicle from stalling, Backfiring. But as the Vehicle is Driven Harder, the valve would open up further to open the venting port and send the air to Atmosphere for a lounder BOV sound. Sales Terms and Conditions. In Purchasing an item from EPRacing Ltd Store means customers has agreed to all the sales terms & condition listed. Some Tuning products may damage your car vehicle if incorrectly installed. All items can be send through out UK mainland, Wales and Mainland Scotland. It is the responsibility of the customer to ensure the item is checked when item arrived. If there is signs on Damage on the Box or packaging customer can reject the item or sign the item as box damage as this will enable the Courier to gives 12 hours window to report any damage and we would strictly expect customer to check item and report back to us as soon as possible. All items return must be in the same condition as it was send out (unused and its under original packaging). Checked carefully for damages before signing for package. Even if the package is in good condition open it immediately and check for hidden damages. Thanks for your viewing! This item is in the category “Vehicle Parts & Accessories\Car Tuning & Styling\Engine, Tuning & Chips\Other Engine Tuning”. The seller is “epracing_ltd” and is located in this country: GB. This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia.