New gaskets with DTLH install?

I read that using the old OEM manifold gaskets is ok, but is it ok to reuse the gasket from the header to y-pipe? What size is the gasket I use if I need a new one? any input would be great thanx

 

bump

 

I installed new crush washers from URD and used the stock gaskets from my old headers for the manifold. I have had the headers on for about a month and retorqued the headers->y pipe connections over the past week, there is no leaks in my system

 

for header to y- pipe connection everyone says use the URD gasket i dont want to wait for it to come in the mail. will an OEM gasket from parts store work with the DTLH?

 

I suppose it will work if it is the correct thickeness/diameter. With URD you can just use Priority mail from URD and it should be there pretty quickly (2-3 days).. I would imagine it would be closer to two days since it ships from the east coast.