I take it thats an ITR airbox. Wheres the top off it ??
According to the ITR lads they you loose loads from removing the top of the airbox because it just pulls in the hot air from the engine bay. instead of from the cold air feed on the end of the box. Someone ot the itr-dc2 forun tested it on dyno so if you still have it id put the airbox top back on lol