High performance valve stem seals for all 6mm valves made from Viton, for all TSI engines of the first, second and third generation. This valve stem seals offer the following advantages: High-temperature strength Improved sliding Higher-life When using new valves also the guides must be replaced! Price for 16 seals. (16 seals per engine needed) Manufacturer Information about the manufacturer BAR-TEK BAR-TEK Motorsport GmbH Im Rauschen Auel 3, 51491 Overath-Brombach, Germany info@bar-tek.com