The one in your link wont fit. The N54 airbox gets in the way. And even if you can get one that clears the top of the airbox it will still knock on it while driving, and that get annoying.
A curved one (like oem) will let you open your oil cap but you still need to remove it to access your air filter. Seems like a lot of work and the 2-point makes no perceivable difference performance wise.
If anything, get the M3 strut from HP if you are are looking for function. I've done both and the m3 version is far more functional.