Inherited 1989 mx-6 turbo?

Hey everyone. I'm new to the whole mazda scene. I just inherited a 1989 mx-6 turbo. It's got the works. Everything is powered, although it's starting to show it's age. I know with a little time & patience. She will look great.  I just need to know a place that sells OEM parts as well as performance parts. I know I can ask the stealership... but some the parts are no longer being sold there.  Can  anyone tell me a place/site that has abundancy of OEM as well as performance parts. Thanks in advance.

I'm not sure of any place on the net that sells these parts because I'm not too familiar with these cars but welcome to the forum.