I ordered a set of Ceramac LTs from Mac, the 1 5/8" with 2.5" collectors, got them in and had the appointment set up for this morning. My mechanic called me 15 minutes after I dropped her off and said that I have the wrong headers. Something along the lines of the hookup for the air pump is in the complete wrong spot and that they won't work. I looked at the slip and I definately "ordered" the right part. Is my mechanic making an error here, can someone please help me out?