Ah.. Now i know why i didn't get it.. i restored a few years ago some 280zx horns and they don't have the paper in between the 2 sides. They came out perfect, just had to retune them, i think most need a retune. (easy with the little screw)

I used this horn restoration kit;

https://www.ebay.com/itm/165791931442?hash=item2699f81c32:g:jk0AAOSw0z5hnvDB&amdata=enc%3AAQAIAAAAwBlTiF8rlJ40nO36Pb8FhL4LPM70GQBmmyyFDt7miW5qeMPhF28RtFCzrQCMH9Oa0daMCxajPII0Rd8dP8AXnywkgbNAeDRC2amtxJGx1xLVaqRTO4mebkwfRxbJAE6NLZ7naC5%2BGlCZywKtQgVkRQvd3taAJl2vmbb7vebgzN%2BbTI3r8hTBcnzRap1aLfcvXIaRKiKGbOSh7HTJVE2NSdjJ6H5wcNeRxw%2FqcAV3bs6%2FoGhmFQLyd%2BoA9dfvmiZt9A%3D%3D|tkp%3ABk9SR_zhr_vvYQ

 

Nice link to that kit!

Just what the doctor ordered...!