Just had mine installed prior to Christmas - and my BPM coding cable arrived in the mail today! Can't wait to 'complete the installation'!
I have found the support to be excellent - certainly better than the OEM leather seats. Next track day will tell the true story...
And I don't think it is possible to buy only one seat - from what I understand, you'll have to buy both seats - then its up to you if you want to just install one seat...I don't know what the implications are for a drivers seat only install...
•'08 M5 Sepang Bronze/Sepang Bronze Full Merino leather w/ Executive Package/H&R/DINAN/20" DPE
•'12 E92 M3 Space Grey on Silver/Black Novillo/M-DCT/ZCP/ZPP/M Performance exhaust, Race seats, CF splitters & spoiler, Alcantra steering wheel, gloss grills, CF int trim/GTS door sills, CF ctr console/LUX H8 V3 6500k/BPM Coding/CF roundels/LED int lites/30% tint