If you want to maintain a factory appearance the aFe Stage 2 Si Sealed Air Box provides quiet performance and industry-leading power gains.
- Ram Air Scoop Built-in ram scoop forces cold air to filter for greater efficiency and performance gains.
- Clamp Stops Raised stops on aFe tubes provide a more secure seal and eliminate slippage versus flat, straight tubes.
- 3-Angle Adapter Specially developed velocity stack with 3 different angles dramatically increase airflow from the filter to the intake tube.
- Quality Hardware aFe uses only top-quality hardware like stainless steel button head bolts and brass inserts.
- MAF Sensor Pad Precision tuned MAF Sensor Pad will not affect vehicle performance or produce check engine light warnings.
- 3 Filter Media Choices Choose from the Pro 5R, Pro Dry S or Pro-GUARD 7 Filter.
- 2011-2016 BMW 535I XDRIVE