Porsche Improve horsepower and efficiency with the iconic 356B and 356C Bursch high performance muffler system. Made from mandrel-bent stainless steel tubing and a galvanized muffler, this system is a direct replacement and an easy install. This set is hand-made in Pasadena, CA. and features stainless steel baffling. Lifetime warranty! Please inquire about special customizations or installation assistance