Are they the same seats? I'm sure thus has been asked before but you can't order the S4 gray gxl seat skins from mazda anymore, so I was thinking of putting the black S5's on there. So really my question is are the skin and the foam underneath the same size/ shape? Also if someone has a picture of a black S5 gxl seat I would greatly appreciate it.

 

They are the same.

 

Outstanding.

 

Foam is different on S5 Turbos and GTUs models, than the S4 GTU and Turbo models.

But the bolt locations and subframes are the same.

 

Are the GXL foams the same Icemark? The STC/STD seat types?

 

yes