Hello
No response on this post. No marked for real stuff in the US ?
The 8 cyl stuff is not aviable anymore ( trade offer ) and the spare cap & finger went for friendly 800 $ to switzerland. ( thats some 40% from the last years official new price ). Maybe i can testdrive the RSR as feedback

But they are so loud and hard plus will stretch your eyeballs and the seats will slap into your neck under full throttle. People who like that might be slightly masochistic.
Rest is still aviable.
Grüsse