I don't own an XP, but that sounds REALLY excessive. Suggest you call Nate @ Alba; he'll know.........First time out on my xp with the stage1 kit and went through 3/4 of a tank on a 1hr ride is this normal?
The fuel increase in percentage for a stage 1 is minimal. There should not be a drastic change in fuel economy.First time out on my xp with the stage1 kit and went through 3/4 of a tank on a 1hr ride is this normal?