This is a used Porsche 914 H4 2.0L exhaust muffler manufactured by BISCHOFF, part number 039-251. The muffler has a bolt-on mounting style and a banana shape, with a rusty finish. It has a single exit and is a performance part, suitable for vintage cars. The muffler is made of mild steel and is a multi-chamber type. The color of the muffler is brown and it is designed to be placed on the rear of the vehicle. This product is not a universal fitment and has an OE/OEM part number of 039-251. It comes with no manufacturer warranty.