I did the same with my old vts.
Removed;
Carpets, door cards front and rear, every bit of sound deadening, all seats and seat belts, pillar trims, spare wheel, spare wheel cage, boot lining, jack, pretty much everything in the cabin tbh.
All was replaced with one light weight bucket seat and 4 point harness.
My car was stupidly loud anyway so stripping it out just made inthat little bit louder.
It went like faeces off of a digging implement afterwards!
I can't wait to get my 197 now, only a couple more months!