Does anyone know if the Y-pipe (Cat to Y-pipe secton) needs gaskets for two 2.5"?

When I took off the stock exhaust I only got Y-pipe, 3" pipe gasket with two bolts and two bolts for end muffler plus ring. Is this correct or do I need four bolts and two gaskets for cats to Y-pipe section?

 

Every inlet should have a gasket. The bolts are built in to the stock cats so you'll only have 4 nuts if you are keeping stock cats.

 

Alright thanks!