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. Some say this is just to make sure, our bikes are passing the exhaust tests, as the injected air is to ‘dilute’ the escaping gasses. This is why the popping occurs on heavy deceleration. The popping is caused by the unburnt fuel combusting in the end can instead of the combustion chamber.
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 PAIR valve from the bike’s main harness will instantly result in an oncoming FI light on your dash (which could mask some more serious bike/engine related faults).
The PS Eliminator will do the trick in a blink of an eye – just plug it in to the PAIR valve’s connector and you’re all set!
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