thanks for all the advice everyone. this paycheck im going to be buying a tactrix cable and hopefully will do a log to see if my knock sensor is detecting knock. Im not 100 percent positive that is is knock in the first place. I was spraying around the engine bay with sudsy water looking for boost leaks and sprayed all the pulleys i could manage and it seemed to make the noise go away for a short period of time. Id love to hear that its not a knock. I will check out the top notch subaru shops in my area and would love to hear a professionals opinion.