E43 Downpipe Leak
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Joined: Feb 2025
Posts: 46
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E43 Downpipe Leak
Hey guys I have a 2018 E43, with catless downpipe, and straight pipe. I keep having an issue where my downpipe keeps getting an exhaust leak. I am tuned with burbles some are gunshot burbles depends on rpm. I can’t figure out why my car keeps getting an exhaust leak no matter how much i tighten the bolt. What do yall recommend? After a couple weeks it comes back.
MBWorld Fanatic!
Joined: Feb 2017
Posts: 2,340
Likes: 1,225
From: Baltimore County, MD
'13 s212 63 p30. '06 LX470
Hey guys I have a 2018 E43, with catless downpipe, and straight pipe. I keep having an issue where my downpipe keeps getting an exhaust leak. I am tuned with burbles some are gunshot burbles depends on rpm. I can’t figure out why my car keeps getting an exhaust leak no matter how much i tighten the bolt. What do yall recommend? After a couple weeks it comes back.
The next statement is based on the owner preference and it doesn’t bother me at all what you do. Burble tunes and pops and bangs are extremely hazardous to your engine and exhaust. Whatever idiot helped popularize turning a four banger into a fireworks show did not care at all about what it would do to the vehicle. Pops and bangs and anti-lag are a waste of money and completely destructive on the vehicles. I’m sure everybody realizes those noises come from exploding gasoline that is not exploding in the right place to create power. Those explosions destroy everything they come in contact with. Even better is if you put on a nice cheap aftermarket titanium exhaust and completely blow it up with your tune.
If you want the car and it’s parts to last, remove the trashy tune. If you want more noise, add more cylinders…
Out Of Control!!
Joined: Jun 2004
Posts: 13,799
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2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
Hey guys I have a 2018 E43, with catless downpipe, and straight pipe. I keep having an issue where my downpipe keeps getting an exhaust leak. I am tuned with burbles some are gunshot burbles depends on rpm. I can’t figure out why my car keeps getting an exhaust leak no matter how much i tighten the bolt. What do yall recommend? After a couple weeks it comes back.
