What are everyone's views on Borla- my exhaust guy said he "makes more money taking them off than putting them on- too many people spend all that money and then it sounds like there is a potato caught in there somewhere" He is listed as a magnaflow dealer but none of those listed on Magnaflo's website have ever even heard of them. I had my res removed but haven't decided on a muffler yet. Dynomax or Flows I guess