High performance hydraulic lifters. Extreme leightweight (70g only) for high performance. Putting a Sports-Cam in your engine new Lifters must be used to prevent premature cam lobe wear, otherwise the product warranty will be void! Including 16 pieces. Please read also more Info as PDF document. Manufacturer Information about the manufacturer BAR-TEK BAR-TEK Motorsport GmbH Im Rauschen Auel 3, 51491 Overath-Brombach, Germany info@bar-tek.com