Engine rocking too much from all that torque?...from the motor hitting the bare metal from the underside.
i would wrap the downpipe in exhaust tape. if not your hood will not only crack, but it will yellow where the turbo is. most cf hoods are only gel coatedI can’t really speak for the OEM hood but I know in my case with a carbon hood it was starting to burn the under side around the down pipe area on my single. The heat affected the top coat of the gloss and even had little spider cracks on the bottom side.
I run my car very hard so this might have played a factor as well. I fixed the problem by installing a sheet of thermal wrap and used high temp silicone to stick it to the bottom side of the hood.
So far so good, I haven’t noticed any more damage due to heat.