Apparently I have a catalytic converter!

[BIGBILL105 45]

My late 99 didn't come with one. If it did, I would of cut it off when the muffler went away too :]

[MrJohnWayne]

My 2000 did not come with one but the 02 I had did. My buddy has a 97 that has one. but I've seen other stock obs without them.

[chvyrkr81]

AND, my 02 didn't have one. My buddies early 03 7.3 did. From everything I've read, they weren't required until 03. But, cali trucks have been required to have 'em for some time now. And, there's a few other places that have those kinda emmisions laws, that sell "cali" trucks. So, this could explain the random appearance? Cali trucks also had different injectors, so...

[Dirk]

Originally Posted by FordCowboy

From what i understand all early 99's have them.

DING! You are correct.

[AlaskanEngineer]

Originally Posted by Dirk

DING! You are correct.

The next ding you all hear will be the sound of that cat hitting the ground after a session of EPA meets Sawz-all!

Any idea why all the early 99's had em yet all the rest were sporadic til 03?

[TuRBoWHiNe]

Originally Posted by AlaskanEngineer

The next ding you all hear will be the sound of that cat hitting the ground after a session of EPA meets Sawz-all!

Any idea why all the early 99's had em yet all the rest were sporadic til 03?

You guys keep saying 03 they became standard??? My 03, I bought used. My first mod was a turbo back 4" system. I'm pretty sure the exhaust I took off of it was stock, it had no Cat... WTF?

[baddkarmaracing]

the 7.3 probably didnt have to have it even if its an 03 it would have been required after a certain build date just look under your hood and see if you have a sticker that says catalyst if you do then somebody else removed it

[TuRBoWHiNe]

Originally Posted by baddkarmaracing

the 7.3 probably didnt have to have it even if its an 03 it would have been required after a certain build date just look under your hood and see if you have a sticker that says catalyst if you do then somebody else removed it

LOL, I've looked for that sticker. It's not there. So if it HAD one, somebody removed it and the sticker! Honestly though, the stock pipe from the turbo back to the muffler was all the same color, no welds, cuts, or even marks.

[chvyrkr81]

Originally Posted by TuRBoWHiNe

LOL, I've looked for that sticker. It's not there. So if it HAD one, somebody removed it and the sticker! Honestly though, the stock pipe from the turbo back to the muffler was all the same color, no welds, cuts, or even marks.

Same with my 02. No clue. I think it was certains trucks bein sold certain places? Definately in the cali models, maybe elsewhere too.

[Dirk]

Originally Posted by AlaskanEngineer

The next ding you all hear will be the sound of that cat hitting the ground after a session of EPA meets Sawz-all!

Any idea why all the early 99's had em yet all the rest were sporadic til 03?

Lots of change over stuff from the OBS to early 99. The some first late 99's had a cat and somewhere around 4/99 to 6/99, they didn't.

From that point, I think Ford put a cat on X many 7.3's to meet cali laws "just in case" because they were selling so fast. In 2003, it was standard with all 6.0's and the last run on 7.3's.