The concept is the “light weight”. It will give you the sporty look because of the carbon wrapped tip.
The weight gets half of the stock muffler. HKS made each pipe and silencer lighter. The appearance is aggressive cannonball design and HKS wrapped it with carbon at the tail. It is a pure sport muffler which has improvement in weight and output performance.
Usually super light muffler is made of titanium and they are very expensive. But HKS made super light muffler with stainless. Pipe plate is 0.8mm thick and silencer outer plate is only 0.5mm of SUS304 material.