Lucky for me my spoiler doesn't engage until I hit 93mph. I think that thing is pretty ugly but I guess it does serve a purpose. I think if it would go up at 45mph it would be a bit annoying.The auto spoiler is there so you don't lose control at high speeds I wouldnt mess with it.......unless you don't plan on
going that fast LOL! My opinion is that if you attach a bigger spoiler to the hatch lid makes it look funny when the automatic spoiler opens at around 40mph and then you have two spoilers-not cool, not cool. I would leave the big spoiler on and disable the small auto spoiler.