The Diamond Eye aluminized 4in x 27in muffler replacement pipe is described as a 4-inch aluminized muffler section intended for exhaust applications. Diamond Eye Manufacturing notes extensive CNC mandrel bending and in-house fabrication used to produce their exhaust components, and this catalog entry lists the pipe with that 4in diameter and 27in length as a replacement muffler section.
Diamond Eye Muffler Replacement Pipe 4inX27in LENGTH AL