[Taylor95]

I read the other thread on here on spoilers, but I don't want to steal it. I'm seeking the opinion of all of you experienced ecomodders on here. Do you think the spoiler pictured will provide any meaningful reduction in drag? Or does it create more drag? This spoiler is $200 online, and that is worth it if it reduces drag. The European XJs have spoilers like that one, so I'm thinking it helps reduce drag. The Jeep on the left has no spoiler for reference.