OMG i have someone else with that problem... i didnt know where it was coming from for the longest time... and finally figured it out on my own.... a simple fix with rubber hose washers on each bolt holding it on the car was the fix......

 

Intakes sound very nice, though they aren't that loud. But it will def. be noticable if you stick your head out the window. I had a fart can tho so I couldn't really hear it. It's def. worth the money, you guys are lucky. For me, an intake is $500, but gives a nice 12 HP.