They told me that at Arvada too, but I argued them off their position. I did have to replace the one cat I did have though for it to pass though. This was on my Audi which I have since sold.
Sascha Steinway TLCA # 20217
1977 FJ40 "Ripper" (because it shreds!) (What is a "shread"...Steve Crase)
1988 FJ62 "Dino" OME, now in the hands of my daughter
2013 F-150 "Black Ops"