9 minutes ago, MartiniB said:

which top plate?

these?

+ additional improvement, rear springs top mounts 8J0 512 149

-> https://www.briskoda.net/forums/topic/481954-lowering-springs-install-on-a-280272-sportline-diy-and-results/#comment-5413309

Would guess yes. The part no I've found is 5Q0 512 341 B for the IV. But not sure if this is already mounted from the factory

1 hour ago, rsna said:

5Q0 512 341 B

Thanks for new part code, Google can't find it :(

3 hours ago, MartiniB said:

Thanks for new part code, Google can't find it :(

Haha, same here, also do know where the number came from. But it is the 8J0 512 149 i will install. They are 10 £ for the pair so why not give it a try instead of new springs for now.