@Rensuhlo said the exhaust costs 1200 but when I go to the site its showing over 2k. So I'm on your side saying you aren't making any money off the sale.
Maybe don't be so defensive.
Then default thing for bmws unplug the battery for like 30 minutes then try again. Or charge the battery. Bmw electronics always have issues if battery is not at 100%.
You're still missing what @BMWAF is saying. It's just marketing because in Australia the GT and GTS model should not weigh the same. But they are listed as the same. Across two models/ trim levels.
Make sure they actually have them in stock first before you pull it off. I know for the A91-CF it took forever before replacements were available. I dont think they even have oem replacents readily available still.