There's no secrecy. You've been telling us for years and I could have sworn it's on your website though I haven't been on there for years

Not sure why you are being so dramatic otherwise? Guess I forgot to mention modifying it for my own purpose. Peace out bub ....

It also could be vibrating against a heat shield.

FYI, not posting this to start anything at all, but just to confirm that it isn't something specific to me, but for those that are experiencing noises, are these the noises you have as well?


Sorry I took this from the driver side, i can get from passenger tomorrow if it isn't clear enough, but it is that metal jangling sound. FYI it has done this from the beginning, even took off the mp and tried reseating it a few times.

No big deal really ... funny thing is that \it sometimes sounds like a weak ass stroker lol.

Yeah that's the same sound I get actually. It only sounds like that at idle though. I figured it was normal/hitting a heat shield. Mine has no catalyst so I know there's no chance of that causing an issue. The sound doesnt really bother me too much though, I just got used to it. I'm staying tuned to see if there's an explanation behind it though.

yea it happens idle for me as well more than anything, i only revved to amplify the noise (Which only happens when rpm comes down to near idle)

Yeah i have a similar noise. I may have posted the videos of it earlier. I know i posted it on BHR's facebook wall. I keep asking my mechanic if its an exhaust leak and he says no, its not, its a resonance thing due to unrestricted exhaust...

Yep same here

Just have to say, no hissing, no rattles, I have had my midpipe for months, Even a major accident no rattles.

I dont know why, but this made me giggle a bit (sorry for whatever accident occurred). CRH should advertise as "crash tested" :rollingla

k heres another video that better amplifies the noise:

Maybe there is a portion of the material used as the silencer contacting another metal surface within the pipe.

I may be mistaken but i believe the internal structure is a spiral that helps attenuate noise. I am not sure if that is prone to break down as I never took one apart. I'm not looking to sound the sirens here, just want to make sure I'm not the only one or if it was something I did.

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Do all BHR mid-pipes already come polished? Or is that extra?

polishing is extra.

Btw I am gunna shoot CRH an email on the matter, not sure if he has been on the forums in the past few days.

oh cool, didn't even notice the option was gone. Van just an FYI my MP isn't polished and it is almost on its first full year of use. The year included a bunch of autocrossing, and a harsh winter and there is no abnormal discoloration or wear or rusting of any sort. Not sure if that was the reason you queried about polishing, or if you were just looking for some bling :)

Charles; any comment on the noises in the videos i posted above? Are these the 'normal' noises that we expect this type of resonator to make? thx

have any of the reported cases (I think I saw one or two others) ever came back as a problem with the resonator you use?

Keep in mind, I have no such problems. My BHR midpipe is just as solid today as it was the day I bought it. Am merely curious of the MTBF / etc.

Shell

Lol why do i picture you like this right now :

https://t2.gstatic.com/images?q=tbn:...c8ygVVihktyBsQ

Anyway, I completely understand, I know that it isn't cat material because I still have my old cat which only had like 14k miles on it and the honeycomb is still intact. I will remove the midpipe this weekend just to take a gander inside to see if i can uncover any more information

Yea i haven't heard of any of them failing either thats why i am very cautious not to allude to anything wrong with the midpipe.

Will report back when i get some more information.

I have that same hiss on my turbo xs midpipe. Exhaust shop said im hearing the Exhaust from thinner piping.

Ah, I see, just needed clarification. I had noticed the pictures on the BHR website HERE show a polished mid-pipe, and there is no option to choose "polished" anymore, so I just assumed that's how they came. My TSX exhaust and header comes polished, would be great to have it matched, but no biggie.

I have a somewhat similar but not as intruding noise in the video posted above, but it doesn't happen during idle; only on low revs during cold starts. When my car is warmed up, the noise completely disappears. :) I've been running on my BHR mid-pipe for about a month now when I bought it secondhand from a forum member and have yet to encounter any problems aside from the intermittent noises on cold starts. Other than that I love the product and it is definitely top notch quality and worth every penny.

Well I did put my midpipe back on 2 days ago which was a nice change, but I think there deff is something wrong with how I installed it. I initially had the issue when I first installed it, only not as bad as this.

When I rev my engine to say like 5-6k once warm in neutral, if I take my foot of the gas and let the revs drop, between 3.5-2k climbing down, there is just a horrible noise that sounds similarly to Paimon's vid. I cannot see anywhere where it would be hitting a heat shield. I will take a video sometime this week Have you ever shifted into reverse, but it was not engaged fully? You press the gas and you hear the gears just spin freely but you dont move at all? That's what it sounds like.

I did not get this sound with my aftermarket exhaust/cat hookup. Hmm... I do know that when I tightened the nuts that secure the OEM cat springs, I tightened them pretty much all the way. Is that a concern? Should it be more loose?

Yep, i first noticed my noise when i was pulling into my garage as the noise would reverb off the walls of the garage as the rpm's fell.

I considered that, and I tried various tightness with no fix. I am starting to wonder if the noise is actually the front crush gasket between the midpipe and the exhaust manifold not sealing properly and rattling. Again, I will be doing more investigating when i throw my car up on stands this weekend.

Mine has been making a noise since I first got it... I never took it off despite the noise... Here's my Video I took awhile ago...


With that being said... Seems alot of people having more and more problems with this...

hrmm yours sounds like the "regular" noise that the design of the resonator makes ... more of that 'woosh' noise once you let off the throttle.

If you listen to my video, you will hear more of a 'trickle trickle' type noise.

Yeah deff let me know what you find man. I've had trouble getting that front gasket to place just right. Not to mention, if I look at the seal between the header and the midpipe, I can see the tiniest tiny gap between the metal seal, but I'm assuming that the gasket should make up for that. I am thinking that if it is just I'm bad at placing that front crush seal in there, maybe I can put a tiny bit of some kind of adhesive on the seal to the correct spot on the midpipe just to get it in place while installing it.