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2nd Gen Ram Tech1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
Yeh there is an o2 sensor in the cat on the front of it and the universal magnaflow has the same spot for the sensor and the o2 sensor screws perfectly into the new cat. You should have the same exhaust set up as i do, here is the diagram under the FAQ section on here:
Is the pipe from the exhaust manifold really only 2"? It looks like 2.5" I stopped by my local exhaust shop and asked about prices, I was thinking 2.5" all the way, he said there wasn't room for 2.5" pipe at the manifold. We looked today, there appears to be plenty of room on each side of the manifold.
Ok guys here's the deal. I took a dial caliper and measured the pipe, for my '01 360 it's 2.5" at the flange for about 3" down then it's 2" to the cat.
Pipes are measure by Inside Diameter. Figger the pipe wall is probably an eighth of an inch thick....
If they're measure by inside diameter and the outside diameter is 2" - 1/8", then you don't even have real 2" pipes, or 3" for that matter, right?
You can see where the pipe is larger at the flange 2.5" outside diameter, then molded(?) down to 2" outside diameter. Why is exhaust so friggin complicated?
Last edited by stewie01; Dec 24, 2011 at 07:47 PM.
What is the usual outcome, having to replace a cat or is it something worse like a cracked cylinder head. It is a 1998 Ram 1500 5.2 4x4 w/140k miles on it.
It's probably a blown plenum gasket, a failed cat, failed oxygen sensor(s), and maybe a cracked head to boot. You can't let 'em go for long like that before the head jumps on the failure bandwagon.
It is a 1998 Ram 1500 5.2 4x4 w/140k miles on it.
