i used a dds converter to make a new seat texture
the default one is 256 x 256
if i increase the resolution to 512 x 512 will it still fit or do i have to keep it the same?
any help would be appreciated

It will fit the same, but you can use better quality textures. Depending how old your computer is, it might effect your framerate. Just so you know

Unless you use a hi quality texture it would look pixelated as you've tried to stretch pixels larger than they are.

Find a HQ replacement interior, make sure it's for patch Z!

Quote from S14 DRIFT :

Unless you use a hi quality texture it would look pixelated as you've tried to stretch pixels larger than they are.

Find a HQ replacement interior, make sure it's for patch Z!

thanks i'll look for one