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05-21-2024, 11:01 PM | #1 |
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Cracked MPE repair & v1-v2 conversion
sorry for the many posts to explain this and lack of pictures. I struggle to upload them/use the site.
I bought a cheap cracked MPE and had it repaired and converted to v2. only difference between v1 & v2 is the 2 supports welded through the mufflers. Took it to Quality Heliarc in Reno NV cost was about $450 Last edited by Oreo Cat; 05-21-2024 at 11:19 PM.. |
05-21-2024, 11:06 PM | #2 |
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exhaust did not come with connecting pipes. cut the OEM pipes off from the original muffler at the welds. No pipe should be left on the OEM muffler as all of it is needed to properly seal against the MPE. Used a grinder to clean up all the burs. they fit perfectly inside the MPE muffler once burs are grinder down.
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05-21-2024, 11:11 PM | #3 |
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https://www.m3post.com/forums/showthread.php?t=2025227
this is a link to the original muffler I bought. I plan on cleaning up the ugly non inconel welds soon with a wire wheel and then some high temp paint just on the welds to keep them from rusting again but not have any paint show from looking at the back. |
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05-21-2024, 11:57 PM | #5 |
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Thanks to Oreo Cat I did the same thing and picked up a cracked V1 and had it converted to V2 by having tubes welded in each half. You basically drill through and through both sides top to bottom at the raised points in the centers. Nothing in-between there that gets compromised or affected. That's literally what BMW did for the 'V2', at least for that part of the muffler.
The guy I took it too used 5/8" Inconel tubes but SS can be used as well. Cracks were welded with Inconel, which is the proper way to do it. The metal is paper thin so need someone who knows what they're doing. Turned out great and can't even see the repairs with it installed. Not a lot of miles on it so far, about 1500, but all still good. The sound of this exhaust is intoxicating and I don't plan to change it. The different tones that come out of it as you go through the rev range are insane. No drone and dead quiet when cruising, especially on the highway. What else do you want. |
05-31-2024, 10:07 AM | #6 | |
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Drives: 2013 E92 M3
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05-31-2024, 08:00 PM | #7 | |
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No pics of the tubes. His other welder buddy provided them. Trust the guy so just dropped it off and let him do his thing. |
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07-11-2024, 09:34 AM | #9 |
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Anybody have any longer-term experience with a welded and reinforced V1? There's a cracked V1 for sale near me and am considering picking it up, but curious about the longevity of these repairs. Also open to recommendations on somebody that can weld Inconel in NJ....
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07-11-2024, 10:19 AM | #10 |
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PNWVERT Was it converted to V2 i.e. tubes welded?
pathall1 I don't see why a V2 converted wouldn't last since that's essentially what BMW did to remedy the cracking issue. Haven't ran mine long enough to be considered "long-term" but it's held up great so far, no issues. |
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07-24-2024, 09:57 AM | #11 | |
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Also, how much did you pay for the cracked V1 if you don't mind me asking? I have one for sale for $1,000 locally to me (has very very minor cracks) and am trying to decide if I should pull the trigger or if it's overpriced. |
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07-24-2024, 10:29 AM | #12 |
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07-24-2024, 10:37 AM | #13 |
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Thanks! And how much was your cracked V1 if you don’t mind me asking? I have one for sale local to me for $1,000 with very very minor cracks (probably may not even need to be repaired to be honest), but trying to get a gauge for if that’s a reasonable price.
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07-24-2024, 02:52 PM | #14 | |
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I'd say $1k isn't a great deal but not bad either. Depends on how much the repair is costing you too. I'd try to haggle down though. Use the fact it'll get worse and the cost of repair to bargain. |
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07-24-2024, 02:56 PM | #15 | |
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07-24-2024, 03:09 PM | #16 | |
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$375 isn't bad. I paid $265 for mine. All the best either way. |
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07-24-2024, 06:56 PM | #17 |
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I paid $150 shipped for a cracked MPE
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07-24-2024, 07:06 PM | #18 |
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