As far as the car feels with the tune and the whole setup....pretty damn awesome. Drives great and I honestly am impressed. The car feels like a 3 series because of the power and Spring upgrade(ARS is a MUST have option for a car this size it does wonders compared to an F10 without). Power is awesome and I put an order in for the Stage 4 with Dinan Intercoolers so I'm excited about that. I am extremely happy with this setup all around.