VR Tuned M5 F90 Tuning Box Released! VRTuned.com June 28, 2018 Product Info, Tuning Tech Although there are some people out there who don’t like the M5, there is no denying that it has borderline supercar performance. The twin-turbo 4.4L V8 under the hood of the F90 is an evolution of the previous M5’s engine, and this time around it has new turbochargers which make 24.5 psi compared to 21.8 […]
