Italian exhaust maker Mivv has taken the latest Kawasaki Ninja 650 sports bike and treated it to a trio of new exhaust systems to make the motor sing a little louder. All three systems comply with the latest Euro 5+ legislation, using a Mivv catalyst to ensure that the relevant gases are removed. The Delta Race system comes in brushed stainless steel or black ceramic coated steel finishes with a carbon endcap and it frees up an extra 2.3hp at the back wheel along with an extra 1.6Nm of torque. The GP Pro race-style muffler comes in gloss carbon or black stainless finishes, with a removable grille that hides the DB killer. Last up is the MK3 system, available in carbon and brushed stainless finishes. Prices are POA.