MXP branded exhausts are made of the highest quality of stainless steel available. The grade of stainless steel is SUS304, which is slightly thicker than a competitor exhaust system that is offered on the market. Though a thicker exhaust may have a slight added weight value to it, the extra thickness helps improve lasting durability and performance for the long term. MXP exhausts are significantly lighter than OEM exhaust systems. Together with the added thickness for durability, and light weight reduction, MXP exhausts will bring out more performance for your vehicle.