Improve horsepower and efficiency with the iconic Bursch custom 1 5/8" Y-Pipe set with a sound actuator. Connects Bursch high-performance stainless steel headers and 997 GT3 mufflers. Control vacuum valve system with two remote key controls, power source, hoses, and all hardware is included. Goes with Bursch headers part number BX.9158.SS and BX.9358.SS. Made from mandrel-bent stainless steel, these Y-pipe sets are hand-made in Pasadena, CA. Lifetime warranty! Please inquire about special customizations or installation assistance