I am looking at replacing the bypass valve on my JDM GT Twin scroll, MY06.
I am not sure if the GFB T9001 will fit as after removing the OEM valve, I note that the opening is a diamond shape as in the below image.
But the base of the GFB T9001 has a round opening, it is also supplied with a gasket with a round opening. See images below.
I know it will bolt on, but will it leak due to the larger opening than hole on the GFB T9001?