this is a brand new N1 style muffler its in the box still. Please Email me if any questions Xproject200sX@aol.com, asking 35$

the inlet 2.5" and tip is 4" "silencer included"

IMG]http://i10.photobucket.com/albums/a105/Project200SX97/2003_0211muffler0004.jpg[/IMG]