I bought an 05 f-150 lariat 2 years ago. Ive been looking into getting exhaust and been trolling these forums looking for suggestions. Ive learned that they have a 4 cat system and i was looking to delete at least two of them. When i looked udner my truck i only have two. I live in canada and i was wonering if this is normal for Canadian trucks or if someone deleted it before me?

 

My 05 Lariat only has 2 right after the manifold and after that there is a pipe with clamps and crap looks pretty ugly I don't know what that is but prob. going to get rid of that soon.

 

yeah...mine has that pipe too. Its crimped kinda right in the middle. Im wondering now if i can replace them with a hi flow cat.

 

Some 05s came from the factory with two cats and some came with four. Depends on when it was assembled. The 4 cat models came first then the 2. Think the break point was the first of the year. More knowledgeable people on here than myself can help you figure out if the prior owner(s) deleted two of them.

 

Mine only has two cats.

 

Only 2 cats here. 4/2005 build date.

 

only 2 here..5/2002 build date

 

 

Correct. All the trucks built January 2005+ have only two cats, but they are larger, still a better system than the previous 4 cat system.

2004+ V6s always had only 2 cats.


Build date 4/04, had 4 cats until 9/08

 

lmao mine had 4 till...oh hell i dont remember..but im sure glad i got cats put back on!

 

i just killed my two big cats for two smaller better flowing cats.

oh and 2 cats. built 3/2005, cats re-done 3/2009 (just looked like fun)

 

 

12/04 build date, 05 model, 4 cats, blah.....

 

maybe they were to fat..he couldnt afford to feed them any more

 

crap, that sounds bad the way he put it, lol.

at least i replaced them with better/smaller ones...