'05 ZX6 Two Brothers Installation Problem

Hi all - I'm new to the forum but excited to be here!
My name is Skye and I live in Sydney. I have a blue '05 ZX6.
I have had my bike for a year and decided to get the Two Brothers Dual Slip-ons because they look totally awesome. I've opted for installing myself, with a little assistance from my man
, but we're having an issue getting the junction tube to fit into the collector. It just seems like the angle isn't right. I would be stoked to hear any tips / ideas, and excited to know what we're doing wrong!
Thanks!
My name is Skye and I live in Sydney. I have a blue '05 ZX6.
I have had my bike for a year and decided to get the Two Brothers Dual Slip-ons because they look totally awesome. I've opted for installing myself, with a little assistance from my man

Thanks!