This aluminum flange connects to the bottom of the Greddy BOVs and allows you to connect the stock 3000GT/Stealth BOV hose to Greddy BOVs.
The hose connection is a "universal" fit and the hose connector measures 1.35-inches / 35mm outside diameter. The inside diameter is 30mm. If you are buying for a vehicle other than the 3000GT/Stealth, please measure your BOV hose prior to purchasing to confirm fitment.
Listing is for the BOV adapter ONLY. Gaskets or other hardware are NOT included.