How bad is it?
 

Today I removed the S&B air filter that was on the truck when I got it, to put on the 6637. When I pulled it out I found oil inside the tube that goes down to the turbo. Does anyone know what would cause that and how bad does it sound? I'l try and post a pic in my gallery or on my avitar.

The oil is normal, it's from the CCV (crank case vent).

Thanks, I feel better knowing that. I'm getting ready to drive it from Colorado or Az and would hate to have something major go wrong along the way.

You can eliminate it with a length of hose and run it to atmosphere.