Discreet, well-executed and powerful exhaust from Naraku that they have chosen to name Traffic, as an indication that this exhaust fits into the cityscape and does not look suspicious if it replaces one's original exhaust.
Naraku traffic is a hobby exhaust that works really well on both standard 50ccm as well as 70ccm sports cylinders.
Note: This exhaust is EU approved for 45 scooters.