K&N K&N Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: 2007-2015 SMART (Fortwo, Cabrio II), 33-2417 in the Automotive Hardware department at Lowes.com
K&N Sportluftfilter smart 453 & Renault Twingo III | MisterDotCom
Smart 453 K&N Filter in Schleswig-Holstein - Henstedt-Ulzburg | Ersatz- & Reparaturteile | eBay Kleinanzeigen
Amazon.com: K&N Engine Air Filter: Reusable, Clean Every 75,000 Miles, Washable, Premium, Replacement Car Air Filter: Compatible with 2007-2015 SMART (Fortwo, Cabrio II), 33-2417 : Automotive
K&N Tauschfilter Sportluftfilter für SMART FORTWO Coupe (450) 0.8 CDI
33-3043 K&N Air Filter fits SMART ForTwo Forfour 0.9 & RENAULT TWINGO 0.9 1.0 24844362209 | eBay
K&N Premium Oil Filter: Designed to Protect your Engine: Fits Select INFINITI/MAZDA/NISSAN/SUBARU Vehicle Models (See Product Description for Full List of Compatible Vehicles), HP-1008 - Walmart.com