...........that is discussed in this thread?

https://www.cherokeeforum.com/f2/exh...-affect-30700/

 

factory dimple for Drive shaft clearance.

 

thats gotta restrict flow like a sob

 

I saw that in mine and wondered WTH happened. Pretty odd.

 

you know in my 2001 i have two pre-cats there with 4 o2's

but that has to restrict flow for a reason


wood pre-cats do the same thing?

 

Yeah I was wondering the same. I thought the PO did something to it.

 

i have the same dent, dont know why its there, anyone know for sure?

 

This was always my understanding.

 

X 3, I have that dent in the exhaust pipe on my 91, also.

 

yep it was on my 93 until I replaced the whole exhaust tubing. I went from the stock 2.25 inch to 2.50 from the bottom of the header all the way back. The guy who did my exhaust was able to get rid of that dimple thing, which seemed like it would restrict exhaust flow. Its been awhile since I did the new exhaust and I didnt loose any low end power or anything. So loss of back pressure was not an issue after removing it...

 

I heard it was to add torque.

 

Ok I'll ask the question.
What driveshaft needs that dent to clear?
Unless Im mistaken my driveshafts are on the drivers side and the exhaust is on the pass side

 

i dont know what it is for but i have it on my 94 xj too

 

So you put a carburated motor in a 99 cherokee??

 

I know I got a dent pretty much the same to that when I bottomed out my stock suspension. Finally redid my whole exhaust system.