Dont buy coverlay. They are great options but degrade faster than the dash does. Also anything with a tiny bit of shine is no good for sight either at the track or just driving daily. The Gloss on the CF dash isn't good for visibility. So, here is what I did.
First remove the s13 dash. I'm sure all of you know how to do this. Or there is a search function lol
Depending on the severity of the cracks buy a can of fiberglass resin, or even just some gorilla glue 5 minute sandable epoxy. Also buy a filler. I used baking soda. I know it's weird but it worked. I also went with the resin because it finishes smoother than the epoxy and you'll need like 4-6 tubes depending on cracks. Finally buy 3 cans of matte or flat black plastidip.
Take the baking soda and pack the cracks full until you can no longer see the crack
Then, Mix up the resin and pour it evenly over the cracks wait 1 hour then sand down until smooth with 120 grit DA sander or by hand either way works of course. After that take your 3 cans of flat black or "matte" plastidip because 1 can = 1 coat. Put 3 coats of flat black plastidip and you're finished. Just install the dash after that
