here's 2 threads that I started on the "autoX/Track" and "Engine & Drivetrain" areas...

https://my350z.com/forum/autocross-road/337578-cusco-rs-o-opened-up-lots-of-pics.html

https://my350z.com/forum/engine-and-drivetrain/337590-cusco-rs-o-opened-up-lots-of-pics.html

both have some comments and break-in conversations that are good info.

*the OP are the same, but the conversations have different content. Just posting it here in case someone doesn't look at the other areas.