Welcome to LN Engineering! Home of Nickies: The Original & Genuine Solid Aluminum CNC Billet NSC-Plated Cylinders for Porsche and Volkswagen. Most orders will ship within 1-3 business days depending on availability. Product may ship from alternate supplier if we are out of stock. For questions about motor oils, please read our FAQ at http://www.LNengineering.com/oil.html. The LN Engineering store features our most popular products; if something is not listed, please call us at (815) 472-2939. Illinois customers are subject to 6.25% sales tax. Restocking fee 25%. No returns or exchanges after 30 days. No returns or exchanges in IMS Retrofit or IMS Guardian. Published prices subject to change. We are not responsible for typographical errors.