Who carries the stock mid pipe for a 4.3 Monte Carlo LS?

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tkruger

Master Mechanic
May 6, 2015
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1987 Monte Carlo LS v6 4.3.

I need to replace the pipe going from the cat to the muffler. No one in my area carries it or even knows what the GM part number is. Been searching the internet and keep finding them for the 5.0 but not the 4.3. Anyone know who may carry one? My cat forward is in good shape and I am not looking for any performance gains.
 

69hurstolds

Geezer
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Jan 2, 2006
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There seems to be two kinds of pipe for 87. One without mounting stud, and one with, used with 25504485 hanger. Don't ask me what is different about them. I'm not familiar with Monte stuff. Part #8 in the drawing. Look familiar maybe?

Other option is to get one bent up for you. Might cost you a buck or two, but any GOOD muffler shop can do it.

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tkruger

Master Mechanic
May 6, 2015
358
310
63
NY
Called my local NAPA stores and both stated that the pipe in the links on the website would not fit the 4.3. Also they looked at Walker (they make the NAPA pipes) and they stated that the part has been discontinued for the 4.3.
 

69hurstolds

Geezer
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Jan 2, 2006
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Apparently you will need someone to bend you up a new pipe. If the pipe actually resembles that in the drawing, there's no way any pipe bender worth their salt can't make you one for a reasonable sum.
 
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