K&N Universal Clamp-On Air Filters K&N Universal Air Filters are designed and manufactured for a wide variety of applications. Regardless of the angle or outside diameter of the air inlet, there is a K&N Universal Air Filter for your equipment. All filters are constructed with ultra-strong, molded, flexible rubber flanges that absorb vibration and allow for a secure fit, and can also stretch up to 1/16 (1.5 mm) to fit intermediate sizes. K&N Universal Air Filters are available in round, conical (cone-style), and oval designs for almost any special application. Select a Universal Air Filter type on the Formula 1 part used by brands such as Porsche and McLaren. During the 1990s, Bilstein developed the first semi-active and active damping systems with electronic control, and in 2004, the innovative DampMatic for Mercedes-Benz and DampTronic for Porsche. The world's most renowned automotive brands rely on the innovation and quality of Bilstein suspensions for series production. Bilstein offers a wide range of shock absorbers, from those designed for private use to those custom-designed for high-end and competition vehicles. It's a brand that adapts to all budgets and all expectations, from the safety sought by a private driver to the fun sought by those who enjoy a sportier driving experience.
