Sure,dont it lots of times. Just check for leaks (fire it up) BEFORE going thru all the hassle of re-installing everything.
They dont last forever,because they are a "crush type" gasket. So dont think cranking up those bolts super tight will fix a leak.
If yer not in a hurry,and cash is no prob,then order some. I had to once,with about a dozen header swaps on 2 Busa's.
RSD.