I just installed them last night. I haven't taken the car for a drive yet but I don't expect to feel a difference. I'm hoping that they sound a little more aggressive like most performance intake systems do.
I primarily chose these because I didn't want to cut larger holes for the Stillen G3 pipes or swap the windshield wiper fluid reservoir for the Injen. I will most likely swap this system out for the Takeda long tube system if it ever comes out since they won't require any modifications to the car.