I do love a lot of the signature wheels. Not trying to take away from the OP, but I was drawn here from the title of the thread which didn’t have the vendor in it.
I was pulling my hair out because Titan T-S5 rims sold out in the 18x8.5 size, but then I found a lot of useful information over at model3ownersclub.
Fast Wheels FC04 rims come in many sizes including 18x8 and 18x9 with +30 or +40 offset and clear the performance brakes. Apparently they have the hub step cut out direct from manufacture these days.
Model 3 Performance with Fast FC04 18" rims and winter tires (picture from Redditor - don’t have original link handy sorry)
Fast Wheels | Canada’s Leading Direct Fit, Performance Alloy Wheels
I went with 18x8 with 30 offset, which are 19.4lbs each. I heavily considered getting 245/45R18s but went with 235/45R18.
This model is the same model as the following video, but now with those newer updates for performance model 3s according to manufacturer.
They can be bought in North America from canadawheels.ca for $900ish ($650 then YMMV for shipping). You can now find Model 3 TPMS on Amazon for around $130 shipped.
People run 245/45R18 (M30C mod’s setup - Garsh’s “Yolandi”), 255/40/18 (Manufacturer’s setup - Mad Hungarian) and most commonly 235/45R18 on these (stock and now come with acoustic foam on the 4Ss from tirerack.com)
Yolandi:
Yolandi: garsh's Performance Model 3
Tire size calculator:
Tire Size Calculator
Reference wheel/tire specs:
The Tesla Model 3 Wheel and Tire Guide
Amazon TPMS, not sure if work. A TMC user helped me get TPMS so I went through him and paid a little more than this amazon listing:
https://www.amazon.com/dp/B07CTB7WM8/ref=cm_sw_r_sms_c_api_i_WyCICbRW1KAPZ (Non-affiliate)