The internal combustion engine in your vehicle is really just a big, complex air pump. Air gets sucked in, mixed with fuel, burned and sent back out in the form of exhaust. But since air around motorways tends to be dusty, dirty, debris-laden, there needs to be a filtration device to stop all that engine killing crud before it makes its way to your engine’s internals. Enter, the car air filter.
Whether it’s a Audi A4 air filter, a VW GOLF air filter or a Alfa Giulia air filter, if it’s the OEM filter, it’s made of paper. The paper forms a tight weave that lets the air pass but catches the crud. The problem is that they eventually get clogged with the crud and need replacing. Not really a big deal, but it will cost you every time you change it, and you’re forced to toss something else in the local landfill.
Then there are reusable performance filters from brands like BMC air filters. These are made from a cotton-gauze weave that’s saturated with special oil. The cotton lets way more air through, thus adding performance, and the oil catches all the crud. And, when they get clogged, you simply wash, re-oil and reinstall. No trash and your filter lasts for life.
BMC air filters are designed and produced to ensure a higher air flow than original paper filters. In F1, for example, BMC cotton filters minimize the loss of air flow pressure passing through the air filter; this way ensures the best conditions for full exploitation of maximum power. Therefore the benefits of replacing the original paper filter with BMC cotton air filter, produced using the same technology and materials as the F1 air filters, are evident.
Qualified engineers using advanced software and expert technicians using the latest technologies produce BMC air filters. An F1 filter must be very light, must be made of the best raw materials and must improve performance. For this reason we use only alloy mesh with epoxy coating to ensure protection from petrol fumes and from oxidization due to the humidity of the air. The filtering material is composed of a special cotton gauze soaked with low-viscosity oil to give you the best air permeability.
BMC technical staff has developed a particular production system based on soft rubber moulding which produces the familiar BMC red filters. They are made in one single piece with no welded joints in the corners, thus avoiding breaking risks. This system, called "Full Moulding" comes from R&D in F1 and it is significant of BMC air filters' technical and quality specifics.