Whats the stock Pipe size on a 93 F150 302 truck, BEFORE the 2nd cat.

the 2nd cat is all rusted out an i wanna get it off there before it falls off and put a system from the 1st cat to the back..., it necks down to 2.25 from soemething that looks pretty big.

I just can't tell if its 2.75" or 3" ..keep in mind i'm talking the outlet of the 1st cat.

thanks

 

Here ya go...



That's the measurement on the output of this piece anyway...

 

Thanks so much man,

I guess a 3" adapter would work?? thats such a weird size,

Isn't a 3" cat back a little much on a 220,000k 302 stock ??? lol i think i can answer my own queston on that one

I'm not even going for power, its slow and i don't care, it will always be slow, just needs to get me to the jobsite/school and back.. it burns 2qts of oil every 2 tanks of gas so she's a little worn out lol, my exhaust fell off and sounds like a school bus and i just want something that sounds good.

i have a 2.25" in 2.5" out magnaflow 14" here i wanna use..

With exhaust measurements, Is it ID or OD measurement??? always wondered. Probly inside....so that pipe would come out about perfect to be 2.75"...great

 

Does everybody agree?? 2.75" ???

i can't believe nobody else has done this, hooked a glasspack right to the back of the 2nd cat and it sounded stock, gotta get rid of that thing.

 

I have 3 inch pipe connected to mine at that point. Its welded and fits fine. I don't have an adapter.

I don't see the point to running 3 inch pipe if the muffler does not have a 3 inch inlet.

When you say that the Magnaflow you have is 2.25 in and 2.5 out, is it a single in dual out? If so then the inlet should be the larger size.

 

Yea its a SI/DO . offset to offset which kinda sucks because i gotta mount it vertical so it doesn't hit the driveshaft. i think.

thanks for answering my question.