With similar performance and sound quality as the GReddy SP systems, the MX line is updated version with a slightly smaller single wall SUS tip and redesigned piping in various applications. The highly polished oval SUS can is a real showstopper. This is a overall well-balanced system. These GReddy MX systems are hybrid system that combines the looks of the highly polished muffler section of the SP system with the traditional single walled tip of the Power Extreme series to create a whole new look for performance.