POTAUTO MAP 3001C (CF8392A) Activated Carbon Car Cabin Air Filter Replacement for BUICK ALLURE CENTURY LACROSSE REGAL, CHEVROLET IMPALA LIMITED MONTE CARLO, OLDSMOBILE INTRIGUE, PONTIAC GRAND PRIXSpec.: 11. 1" (Length), 7. 28" (Width), 1. 14" (Height); Four layer fabric (One Carbon Layer) ; Installation instructions included. Applications Where Used: (Allure 09 05, Century 05 97, LaCrosse 09 05, Regal 04 97); (Impala 11 04, Monte Carlo 07 00); (Intrigue 02 98) (See Amazon Part Finder for fitments to your cars) Benefits: (1) Reducing at least 98% of these contaminants (Dust, Exhaust Gas etc.) from the air passing through the filter &entering