Stainless Works Smooth Oval Muffler - 24in Long 2 1/2in ID Inlets Both EndsSmooth oval Muffler, Made from 304 stainless steel for maximum corrosion resistance. This muffler has 2 1 2" ID center inlet outlet with a 2 1 2" core and a body of 2 1 2" x 4 1 8" and overall length of 24" with a mill finish. The smallest, most compact muffler available! Rumbles at idle, quiets at speed. Reversible design lets you pick the sound level you want! These are TIG welded for strength and durability. These kits come with a lifetime warranty