BMW M340i Stage 3

BMW M340i Stage 3 Build: Pure 800 Turbo, Dyno Results, and Exhaust Nightmares

BMW M340i Stage 3 Build: Pure 800 Turbo, Dyno Results, and Exhaust Nightmares

By john

In the world of BMW tuning, the B58 engine is a legend. But pushing it to Stage 3? That’s where the real magic happens. ...