The aFe P5R Drop-In Air Filter for Smart Fortwo (2008–2011) 1.0L replaces the stock element with a high-flow, oiled OE-style filter that increases airflow relative to factory parts. Constructed with a 100% polyurethane boxed frame and an integrated urethane bump seal, the Pro 5R five-layer cotton gauze media and deep pleats provide improved dust-holding capacity and airflow. The unit is washable and reusable and fits in the factory housing with a limited lifetime warranty.
aFe MagnumFLOW Air Filters OER P5R A/F P5R Smart Fortwo 08-11 L3-1.0L