The MagnaFlow 5 X 8in Oval StraightThrough Performance Exhaust Muffler 12279 is engineered to enhance your ride with a healthy helping of our signature exhaust sound and dynoproven performance thanks to its freeflowing straightthrough perforated stainless steel core wrapped in stainless steel mesh and acoustic fiber fill The reversible universal 3/3in diameter inlet/outlet StraightThrough layout allows you to install it in whatever orientation and configuration you see fit However professional installation is highly recommended Muffler 12279s weightoptimized 5x8x24in ovalshaped body features a satin finish that elevates the overall aesthetics of your current exhaust setup 12279 is made of durable corrosion resistant stainless steel and produced using cuttingedge CNC precision robotic manufacturing techniques all backed by MagnaFlows limited lifetime construction warranty