This is a brand new up type complete exhaust manufactured by Yoshimura Co.
It fits Honda Dax 125.
Brand new product sold inside its original package.

Here are several technical informations from manufacturer:

Product information
"Straight 762 Cyclone TYPE-UP for Dax125" is a muffler that combines Yoshimura's traditional straight pipe style with an up-type muffler layout. 
It attracts riders with its challenging looks and exhaust sound.

<Straight Cyclone>
The straight cyclone has its roots in the 1971 Daytona CB750 racer "4-1 collection pipe muffler", and later became the debut year of the collection pipe, which is synonymous with Yoshimura. 
The unchanging straight pipe style with no separate silencer and an integrated muffler and black paint is still supported by many riders after more than 50 years.

performance
A straight cyclone without a silencer has a structure that makes it difficult to achieve performance while suppressing the volume within the regulation value due to its structure. 
At Yoshimura Japan, you can experience powerful driving with a rich torque feel that starts from the beginning of opening the accelerator while complying with various regulations with the muffler manufacturing technology that we have cultivated over many years.

sound
By adopting a large diameter φ76.2 for the tail pipe, you can enjoy a powerful look and a sound with increased bass.

weight
Approximately 60% lighter than the stock muffler. It contributes to improved athletic performance by reducing weight and centralizing mass.

durability
Corrosion resistance is improved by using stainless steel for the muffler body. The matte black paint uses a special paint with heat resistance.

<Precautions when using tandem>
・Due to the layout of the muffler, there is a risk that the hot muffler will come into contact with the passenger's feet.
・Please be careful when riding in tandem. Unexpected injuries such as burns may occur.
・This product is recommended for single riding.