VTT F-Series BMW B58 Modular Carbon Fiber Intake SystemVTT is proud to announce another product in our carbon fiber product line. The BMW F Series B58 Modular Carbon fiber intakes system! We COMPLETELY do away with the entire factory intake tract, including the accordion hose, the turbo muffler, all of the restrictive bends. We then replaced it with a smooth radius 2. 5 4 Silicone intake pipe with wire impregnated to ensure strength and longevity. This is coupled with our billet intake connection for an