bov blow off valve

I’ve a standard EP91 and bought a greddy bov. I know which pipes it needs to connect to but the bigger pipe isn’t big enough to fit the bov so I’m wondering how to get this to work :(

Over-boosting on aftermarket BOV Hi Guys, I know this has been covered a thousand times - boost creep - but I did a quick search which I found nothing on. I've just purchased a Turbosmart Type II Vee Port (second hand) Blow Off Valve and fitted it to my car - blocked the damn EFI pipe with a...