Help with my CAI on my Civi!

Everything works just fine with my AEM cold air intake EXCEPT, when I am accelerating slowly, I get this whistling sound (not too loud, but still noticable). I thought I could learn to live with it, but it is driving me nuts! Any ideas? I didnt have this problem before I installed it. Other than that, the intake works great. Anyway, any suggestions or ideas on what it may be and a soultion would be great! Thanks!