High performance valve stem seal for all 6mm valves. These valve stem seals offer the following advantages: High temperature resistance Improved sliding properties Longer service life Only suitable for inlet valves! When using new valves, the guides must also be renewed! Price for one valve stem seal. (24 pcs. per engine) Manufacturer Information about the manufacturer BAR-TEK BAR-TEK Motorsport GmbH Im Rauschen Auel 3, 51491 Overath-Brombach, Germany info@bar-tek.com