Thanks Yes, agreed, the shell sure like a Larini. Does Larini stamp or otherwise ID their mufflers with name etc? They have a "GT3" version in their lineup that looks exactly like mine except there are no ribs on the shell, (like most of their mufflers). Maybe mine is an early version. https://www.larinisystems.com/collection/lotus/elise-sc
I have the older Clubsport with adjustable elbow. The version after mine, they didnt offer that anymore. It looks just like yours with the ribs.
I would have to look, it's been years since installing it but dont recall seeing a stamp or placard. I have their test pipe for my Evora laying in the garage and it has a placard welded to it. I'll check when I get home.