Should you get more details on the sport exhaust, please share here as I have the same question. Car already specced but that option was not available at the time...
Spoke to the dealer yesterday. The S/S exhaust is now standard. The only exhaust option is colour, white or black. So if you specced S/S when ordering, your final price will now be less.
The sports exhaust is not on the options list yet and I’m not sure, if it ever will be, it might only be an aftermarket market part. Either way, it won’t be a problem adding it further down the line.
Though he did mention that a Quad Lock phone holder and a Seat Step Protection are now on the options list. They weren’t there for my initial order. I asked to have them added along with the BeeLine navigation. Not sure yet if he was successful. as the order is now locked in. Hopefully he got it sorted.