Head gasket material question

[blaster003]

just got my wiseco piston and gasket set and noticed the head gasket is silver instead of copper. Would this matter or do I need to get a copper gasket?

 

[Larry's Shee]

Who's the manufacturer of the gasket set?

 

[blaster003]

Athena gaskets the company I bought them from told me the silver head gasket is better than copper pretty sure it is a Chinese brand

 

[Awk08]

I'd buy an OEM Yamaha copper gasket