Leaderboard

For ecu Birds the pair switches off at the point that the ecu switches to using the lambda readings for fueling. (Otherwise the ecu would just keep making the fueling richer to allow for the excess air in the exhaust.) This is for very little time in the useage cycle. So for most of the time the presence of pair is not adding air but it may still theoretically affect pulsing to an incredibally minor degree.If it does then Superhawk996 is right. If anyone believes that their riding is restricted by this ultra minute possibility then do as you please. I have never been in the situation when the functioning presence of pair has had any effect. If every possible weight saving has been done and every performance mod applied and rider excess weight has been eliminated and skin tight leathers are used (the list is endless) then I doubt anyone would gain a practical advantage without pair - but whatever floats your boat. At least it is always a topic for a forum.