A single turbo S55 sequential air shifts at 8,000rpm just have a different sound! I have done a bunch of hard testing and track days with the @samsonasmotorsport_official RWD6 box and no signs of shavings or wear. They can build one hell of a sequential box!! Next test day will be at Laguna Seca 12/9 this will be the first time with this gearbox at Laguna. The closer ratios will definitely help with the up hill elevation changes. 🤙🔥🔥 #s55 #m3 #m4 #bmw #bmwgram #performance #racing #bmwlife |