E39 525i 528i Afe Stage 1 Air Intake System 1997-2003

BMW 525i/528i, E39 (97-03) L6-2.5L, 2.8L

- Trim sealed to seal out hot engine air.
- Pre-positioned PEM-nuts for easier installation.
- Welded and pre-assembled sheet metal.
- Pre-positioned opening for stock attachments.
- 3-angle velocity stack adaptor on some applications.
- Powder-coated covers on some applications.

aFe Intake System Features:
- Replaces factory air filter.
- Replaces factory air box.
- Black textured molded tube.
- 16-gauge powder-coated steel heat shield.
- Radial universal cone filter.

aFe Intake System Benefits:
- Increases up to 25 HP.
- Improved airflow for more torque and better performance.
- Improved velocity for better acceleration.
- Reduces heat transfer to intake air.
- Durable and corrosion resistant, blocks out engine heat.