how about the AEM workhorse systems?

 

So I finally get a chance to remove the "X" baffle in the intake as well as remove the silencer ring, hoping to get a bit more whistle. And wouldn't you know it, it actually seems quieter than before! It seems only the pitch has changes, and it's a much higher pitch, but overall it actually seems quieter! I'm heading to Santa Barbara tomorrow so I'll see if it livens up on the freeway.

 

I vote for ****** too. Its crazy how much louder it is than others.