So I went to Gm to get an oil change and found that my zzp header is leaking off of cylinder 1. They want to take it all off and check the header face to make sure it isnt warped and for me order new gaskets from zzp to put it back together. I installed my header about a month ago and the face was perfect when i bought it. Sould I just get GM to put a new header gasket in and torque to factory? Do you think it would be warped.

It is a ZZP 1 3/4" header, 2.5" bolt-in