Whoa, if the exhaust included the cat then it would have said from the headers to the back in the description and not from the cat to the back.... I told you over the phone that it is from the catylitic convertor to the back.... Almost all exhaust systems are sold from the cat to the back.... Plus its pretty much illegal to take your cat off of your car (not that it matters)... Also if you still did not get the description or were unsure of it then why did you not say something when picking it up and when you noticed there was no catylitic converter on the exhaust??