BMS Cowl Filters compatible with E Chassis BMW 135 335 & X1;

Better engine sound, cooling and a weight savings of 10lbs. E chassis owners have known for some time that removing their cowl and HVAC filter system not only reduces vehicle weight but also improves overall engine bay cooling, facilitates engine & DME box access for service, and lets the driver better hear how the engine is running. But there was always a catch. How to stop dirt and debris from falling in in to the interior ventilation system? Well BMS has finally come up with a solution. These cleanable light weight dry filters look great while blocking dirt & debris from the cabin. Water won't run into the HVAC system with or without the cowl filters as they are raised openings. Suddenly removing your cowl is not only for race cars. Cowl Filter Applications (E chassis Only) 1 Series 2008-2013 E82 Coupe - All Models including M 2008-2013 E88 Convertible - All Models including M 3 Series 2006-2011 E90 Sedan - All Models including M 2006-2011 E91 Touring - All Models 2006-2013 E92 Coupe - All Models including M 2006-2013 E93 Convertible - All Models including M X1 2010-2013 E84 X1 - All Models Replacement Black Screws OEM part #07147146539 Features & Benefits: Better engine sound without cowl Better engine bay cooling Keeps dirt & debris out of the interior ventilation system Easier access to DME box and spark plugs Easy install and removal