I find it interesting they havn't fully covered the exhaust here, whether their exhaust temps are running too hot for a cover to withstand, or maybe perhaps they are running very aggressive overrun, causing more exhaust temp compared to that of the RedBull, Ferrari, Torro Rossa?
Infact a quick search, as the Mercedes works team arnt running a similar system this cant be definitive, but the Force India are also running a fully exposed system?
Could this be proof that the Mercedes unit is infact running hotter exhaust temps compared to the Ferrari and Renault units?
Perhaps they have to run extra overrun to achieve similar exhaust volumes. just food for thought
"I continuously go further and further learning about my own limitations, my body limitations, psychological limitations. It's a way of life for me." - Ayrton Senna