Bought the V1's on amazon for less than 400$ and its the same exact quality as Kies Motorsport, great YouTube channel but he honestly be scamming on his website haha. The v2's are also on there for cheaper. Luckily with any issues you can return back to amazon quick and easy.

GTS V1's that I own right now

https://www.amazon.com/inginuity-time-Sequential-Indicator-2012-2018/dp/B08TH445C6/ref=sr\_1\_5?crid=399D310S2FPMG&dchild=1&keywords=bmw+f30+gts+tail+lights&qid=1632352876&sprefix=bmwf+30+gts+%2Caps%2C173&sr=8-5

GTS V2's

https://www.amazon.com/Sequential-Upgrade-Taillights-Compatible-YAB-BW-0293AS/dp/B08YYGCCHS/ref=sr\_1\_8?crid=399D310S2FPMG&dchild=1&keywords=bmw%2Bf30%2Bgts%2Btail%2Blights&qid=1632352971&sprefix=bmwf%2B30%2Bgts%2B%2Caps%2C173&sr=8-8&th=1

voila