...you may want to return that model right away, I don't know the exact technical name for the problem. I do know that it the problem exists for that model only and following the bug trackers I think it may be something to do with somebody smearing a turd along the rest section and all around the touchpad area. Try to RMA, hope it works out for you.
Here's a video of exactly how my car sounded and performed before the blower swap. I kinda prefer the sound of the stock blower, but I LOVE the power of the Kenne Bell blower, so I had to swap out : http://www.youtube.com/watch?v=Yi__60ZT1wI
And here's a Cobra with the exact same Kenne Bell blower I have now, they sound similar, but my blower is louder, my car performs about the same, it's hard to say which is faster. Mines 556RWHP, it doesn't say how much HP this one is, I'd say around the same: http://www.youtube.com/watch?v=TDuLPXunHQQ