Best F12 exhaust system?

[londongeorge87]

Wondering what your thoughts were on best system for F12?
Seen IPE everywhere but have heard they're mass produced and pretty poorly made - is this true? What systems have you all got?

Came across this custom system from a lesser known lot, Brookes Race Exhausts recently - anyone have any experience with them other than mr 'TGE TV' here?
https://www.youtube.com/watch?v=RK25zk1edtk

Sounds and looks good!