Had that same annoying problem with my wife's Nissan. The dealer installed a factory spoiler on a car that didn't come with one. Not only do I have a 4th third brake light, LOL, the trunk closes pretty hard if you're not careful. It has springs instead of lift cylinders so we just deal with it. You might be able to get stronger/higher pressure lift cylinders for your trunk that will help. I think they're pretty much universal as far as the mounting points. BTW, wing looks nice.