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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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08-04-2017, 12:11 AM | #1 |
Good Job Subaru!
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Invidia N400 Exhaust Rattle
Hey everyone,
I installed my Invidia R400 just over a month ago and have been loving it so far. However, after just over a month of having it installed, I've noticed for the first time today that there is a noticeable metallic rattle coming from what sounds like the rear of the vehicle in certain conditions (under reasonably light to full heavy acceleration load, around 3200-3500 rpms and again around 4000 rpms; then on coast at similar rpms as well as 2200ish rpm). I got under it and tightened what I could without lifting the car (tightened the midpipe to catback connection, I'll be lifting the car up tomorrow after work), but to no avail. If I played with the exhaust in the rear then start driving the noise goes away for a few minutes before starting up again. An audio clip here, to be more specific (pay attention ~0:10 for the metallic noise): [ame="https://www.youtube.com/watch?v=DRa-8veLKN8"]BRZ Exhaust Rattle - YouTube[/ame] Any thoughts?
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Last edited by JBezugs; 08-04-2017 at 09:43 AM. |
08-04-2017, 12:35 AM | #2 |
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Did you check the whole exhaust to see if it's touching something or about too?
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The Following User Says Thank You to bryansuriel3 For This Useful Post: | wparsons (11-07-2019) |
08-04-2017, 02:16 AM | #3 | |
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Quote:
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08-04-2017, 01:56 PM | #4 |
Good Job Subaru!
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Found the culprit. The weld on the hanger bracket between the rear section of the pipe and the primary hanger is weaksauce. Not sure if there's a point warrantying it if the welds are so weak from the factory. I'll head to the muffler shop next week to fix this with a nice fat weld, as well as the other side to prevent that one from breaking as well. For now, a temp solution to cure my annoyance:
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08-05-2017, 12:01 PM | #6 |
Spun
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Good find. That will do it! I would try muffler cement or get it over to a local
Shop. Quick weld and you'll be all set. Send the bill to Invidia. |
08-07-2017, 01:10 AM | #7 |
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I had this as well and my diagnosis was something inside the pipe, I'll have to check my hanger brackets to see if they're broken
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09-07-2017, 01:01 PM | #8 |
Good Job Subaru!
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Finally went to the exhaust shop on my lunch break today to get the brackets rewelded. No issues now!
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The Following User Says Thank You to JBezugs For This Useful Post: | wparsons (11-07-2019) |
09-07-2017, 01:09 PM | #9 |
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Damn he needs a 'stancenation' tramp stamp with a stance like that!
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11-06-2019, 08:33 PM | #10 |
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How much did it cost to reweld? This noise is coming from mine too
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