PAIR SYSTEM ELIMINATOR HEALTECH KAWASAKI VERSYS 650 2007-2023PAIR SYSTEM ELIMINATOR HEALTECH Model: HT PSE 01 The PAIR system on modern sport and street bikes injects fresh air to the exhaust. Doing so, it minimizes the amount of unburnt fuel getting to the atmosphere. This is why the popping occurs on heavy deceleration, as the unburnt fuel is combusting in the end can. Whether you just simply want to get rid of the popping, or opting for a dyno tune, the PAIR system is in your way. However, disconnecting the