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Wales
by Joske Vermeule, September 1
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Forums39
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Jun 14th, 2026
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Joined: Feb 2018
Posts: 807 Likes: 38
Talk Morgan Regular
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Talk Morgan Regular
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Lightspeed - have you loosened the clamp fitting (after the cat) and tried to rotate the exhaust pipe slightly? The muffler mounts will preclude any meaningful amount of rotation.
Steve
Late 2012 M3W
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Talk Morgan Addict
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Talk Morgan Addict
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Lightspeed - have you loosened the clamp fitting (after the cat) and tried to rotate the exhaust pipe slightly? The muffler mounts will preclude any meaningful amount of rotation. That is my thought.
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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Talk Morgan Expert
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Talk Morgan Expert
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Is it the exhaust itself or the exhaust mounts that are off, what is the difference between sides? The exhausts have around 1.5 inches difference between each side as standard measured from the tip of the exhaust to the body.
Bruce
1964 4/4 Series V Comp (Megan)
1994 +8 (Maurice) tis no more
2013 M3W (Olga)
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Both the dealer and I measured the pipe and it’s distance from the body. Both pipes are parallel to the body all the way through the muffler but the stinger on the driver side continues straight back where as the stinger on the passenger side starts to change angle and is 3/4” further from the body than the opposite side.
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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Learner Plates Off!
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Learner Plates Off!
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How about using a pipe bender to straighten it?
'17 M3W:
'08 Ural Gear-Up
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You really would want to bend it quite near the muffler so a pipe bender wouldn't help with that.
Heating the pipe with a torch on the "long" side then quenching is one way to shrink the metal and create a small bend in a pipe. I got about 2 degrees of bend using that method when I built my current exhaust.
Also, by getting the muffler end where the pipe joins red hot and flexing the muffler end cap should work. But anytime you heat stainless with a torch, there will be much polishing involved to get it back to nice and shiny.
Steve
Late 2012 M3W
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You really would want to bend it quite near the muffler so a pipe bender wouldn't help with that.
Heating the pipe with a torch on the "long" side then quenching is one way to shrink the metal and create a small bend in a pipe. I got about 2 degrees of bend using that method when I built my current exhaust.
Also, by getting the muffler end where the pipe joins red hot and flexing the muffler end cap should work. But anytime you heat stainless with a torch, there will be much polishing involved to get it back to nice and shiny. I like the idea of expansion and contraction. So heat the body side and quench it to draw the pipe closer to the body? If that fails then heat the outside and push the tail toward the body, securing the muffler beforehand so as to not push on the body? By doing it that way it retains the original pipes and they could be left on the vehicle if proper welding blankets are used.
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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I don't think I would risk trying this on the car. The exhaust is a one person job, pretty simple to remove, and once you've done it, it's about 8 minutes to remove both sides. (not that you need to remove both sides). And if you are going to try and 'lean' on it after heating, you will want it solidly restrained, not subject to the flex of the rubber mountings under the mufflers.
Steve
Late 2012 M3W
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I don't think I would risk trying this on the car. The exhaust is a one person job, pretty simple to remove, and once you've done it, it's about 8 minutes to remove both sides. (not that you need to remove both sides). And if you are going to try and 'lean' on it after heating, you will want it solidly restrained, not subject to the flex of the rubber mountings under the mufflers. Yep, chaining the muffler down to something and then heating to put a slight bend at the muffle end of the pipe is what I would do. I have done a lot of forging, welding and fabricating of mild steel but never stainless so the concepts are not foreign to me. Look at the ironwork that goes into making a true 18th Century piece of field artillery and you can see the sort of things I have done. This is the weld that MMC produced and is the one off angle. ![[Linked Image]](https://www.tm-img.com/images/2019/08/03/Weld.jpg)
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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