Installing 4-4 exhaust

Installing the replica exhaust on my z1B and having issues with pipes 3 and 4.

Where the muffler clamp goes on pipe 3 is bigger than where it goes on pipe 4. This means when I tighten the clamp down it won't get tight on pipe three.

Am I missing something?

Do you mean the balance tubes on the mufflers?
Any problems with pipes 1 & 2?
One goes into the other then the gasket and clamp

Sorf wrote: One goes into the other .....

These are the Key words... That's why they are different sizes!
However, the rubber "hose" does clamp them both
RegardZ.