The MagnaFlow 4 Round Center/Center Straight Through Performance Muffler #10416 features a 4 diameter and 14 long body, with an overall length of 20 and inlet/outlet inside diameter of 2.5. Enjoy MagnaFlows deep throaty sound and dyno-proven high flow performance on your ride with this center/center layout muffler. Each #10416 muffler is produced using lap-jointed and welded, heavy gauge 100% stainless steel construction, a straight-through perforated core, high-temperature acoustic packing material and stainless-steel mesh. Muffler #10416 is backed by MagnaFlows limited lifetime warranty. Professional installation is highly recommended.