I've been very happy with my 18" TE 37s. They are 9.5x18" with an et of 28. I have AP racing 368mm brake kit but the 380 Stop Tech kit will fit with room to spare. The 380 Brembo will be tight.
Took a while for me to get these wheels but I've had them 9 months and about 9-10 lapping days. They weight a little over 18lbs.
Photo from PCA skills day event yesterday in Bremerton WA.
2015 f80 M3, 2016 GT3