BBI Autosport 2011-2019 Porsche 911 (991.1 & 991.2) 3D Printed Aluminum Window Deflectors
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About This Product
The BBI 3D Printed Aluminum Window Deflectors eliminate window buffeting — the deafening Helmholtz resonance that occurs when driving at speed with the windows down. Using Computational Fluid Dynamics (CFD) studies, BBI designed unique aerodynamic geometry that directs airflow around the side windows and mirror area to mitigate the problem entirely.
Metal additive manufacturing (3D printing) enables geometry that would be impossible with traditional manufacturing while keeping material usage to a minimum. The main deflector moves air around the side windows while added winglets guide the airstream for clean, quiet cabin conditions at any speed.
AMBBi Technology. These deflectors are part of BBI's Additive Manufacturing program (AMBBi), powered by Pankl in Austria. 3D metal printing in aluminum, Inconel, and titanium opens possibilities for geometry, weight reduction, and strength that traditional manufacturing cannot achieve.
Key Features
- ◆3D printed aluminum construction for unique aero geometry
- ◆CFD-optimized design eliminates window buffeting at speed
- ◆Winglets guide airflow for clean, quiet cabin conditions
- ◆Lightweight yet strong — additive manufacturing minimizes material while maximizing rigidity
- ◆Satin black finish for OE look
- ◆Bespoke color options available via sales@ffperformance.co
Technical Specifications
| Material | 3D Printed Aluminum |
| Manufacturing | Additive Manufacturing (AMBBi / Pankl Austria) |
| Design Method | CFD Aerodynamic Optimization |
| Finish | Satin Black (custom colors available) |
| Installation | Direct fitment to factory mounting points |
Vehicle Fitment
All variants including Carrera, Turbo, GT2 RS, and GT3
About BBI Autosport
BBI Autosport is a Porsche performance engineering company based in Sacramento, California. From championship-winning GT3 Cup cars to 1,000+ horsepower street builds, BBI brings motorsport-grade precision to every component they develop. Their StreetCup program bridges the gap between track-proven motorsport engineering and street performance sensibility.
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