quick help! muffler pipe diameter problems!! - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 01-07-2008
IamLegend's Avatar
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Icon8 quick help! muffler pipe diameter problems!!

UPDATE: Any guys using the search to find out the diameter here it is:
On 98 3.0 2wd the pipe by the muffler is 2' and its the same after the muffler.
If your buying a after market muffler buy the 2 1/4 size and use the following if your doing it yourself:
2, 2.25" to 2" adapters
1, 2" to 2" muffler extension (you will have to cut down)
2, 2.25" clamps and 3, 2" clamps
This worked great and it sounds mean!! Heres the website I found the info on with pics, this explorer had the same setup as my 98:

http://www.explorerforum.com/forums/...d.php?t=182514

I installing a new muffler today, I remember somebody telling me 2 1/4 was the size I needed. So I bought to 2 1/4 adapters and the new muffler was 2 1/4. Well after I cut the old muffler off I saw the adapters did not match up with the pipe but did work with the new muffler.

Im going back up to buy the correct stuff soon as sombody can correct me on the right size adapter to buy. Thanks

1998 3.0 2wd

Last edited by IamLegend; 01-08-2008 at 12:00 PM.
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Old 01-07-2008
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2.5"
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Old 01-07-2008
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If 2.5 to loose then go with 2 3/8
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Old 01-07-2008
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thanks for the replys, so the stock pipe on a 98 3.0 is 2.5 or 2 3/8? They are the same on both ends where the stock muffler used to be?
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Old 01-07-2008
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theres no such thing as a 2 3/8" exhaust pipe.

the factory size is 2.25 i think.

you just need to get the right adapter. cut a small piece of the pipe off and take it with you
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Old 01-07-2008
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They do make reducers in 2 3/8s,that what it took to put a new cat on my beater.
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Old 01-07-2008
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Or get a pipe expander to make it work.
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Old 01-07-2008
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on my '01 4.0, right after the last cat, is 2.5, then the spring flange thing, then 2", then muff, then 2", then the tip(last 5" or so) is enlarged to 2.25. Thats what mine was stock.
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Old 01-07-2008
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mines the same as above
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Old 01-07-2008
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shane i think your right.

my 04 factory system is 2.25 all the way back, than expands to 2.5 at the end of the tail pipe.
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Old 01-07-2008
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well I was out buying the right part and got home and 2.5 is way off (way to big). I just saw th posts here while I was gone, Im headed to te 24 autozone intown to try yet again. Im going to try a 2inch.
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Old 01-07-2008
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Icon9

Heres a drawing of what my set-up is. Im confused on what size adapter to buy for both sides. I bought the wrong adapter yet again. Im having a hard time.
[IMG][/IMG]
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Old 01-08-2008
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okay...those adapters are a little trucky....there's a ID and OD measurement. I believe you'll need a 2.25" ID and a 2.00" OD adapter for this to work. 2.25 to slip into the muff, and a 2" to slip over the exhaust.
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Old 01-08-2008
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Quote:
Originally Posted by Fx4wannabe01
okay...those adapters are a little trucky....there's a ID and OD measurement. I believe you'll need a 2.25" ID and a 2.00" OD adapter for this to work. 2.25 to slip into the muff, and a 2" to slip over the exhaust.
Your dead on Fx, I did a update at the top for the future keyword searchers.
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Old 01-09-2008
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well i cant say what size i had for my 2000 but from the header back i put 2.5" pipe into a high flow cat and 2.5" all the way to the 50 series delta flow flowmaster and dumped right at the bed
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