BMC Twin Air Conical Filter

The BMC Twin Air Conical Filter is a universal performance air filter, also called a conical air filter or direct induction intake filter. It replaces a restrictive factory airbox and paper element with a free-flowing, reusable cotton filter. The Twin Air (TW) design draws air through both the center and the sides of the cone. BMC offers it with a range of top styles.

Key Features:

• Twin Air design: Air enters through a central opening and the sides. The Single Air (SA) filters in BMC's range have side airflow only.
• Cotton gauze media: The media is cotton gauze soaked in low-viscosity oil. It is meant to let air pass easily while still filtering it.
• Epoxy-coated alloy mesh: The mesh supports the media and is coated to protect against petrol fumes and oxidation from humid air.
• Full Moulding construction: The filter is moulded in one piece from soft red rubber, with no welded corner joints. The design comes from BMC's motorsport development.
• Heat-resistant rubber base: The red rubber gives a secure connection to the intake. BMC says it resists engine stress and heat without deforming.
• Top options: Depending on the part number, the top is made of metal, plastic, polyurethane or carbon.
• Washable and reusable: The filter can be cleaned and re-oiled instead of being thrown away.

BMC conical filters are meant for direct air intake. They can be installed on most engine types once the original airbox is removed. They are a popular upgrade for builds that want better airflow, and BMC says the improved airflow can help power and torque. BMC holds ISO 9001:2015 and EN 9100:2018 certifications for designing and manufacturing air filters and composite materials.