Loudmouth Exhaust Question
Loudmouth Exhaust Question OK so I have the LM 2 system on my car and I recently posted a thread stating that it wasnt loud it sounds like a regular exhaust system, I even had some friends tell me at WOT its not as loud as it should be, my question is this have any of you had this problem I had a local dealership inspect my cats and they said they are fine and working I have had the exhaust on my car for 4 years and have 103k miles on my car , another thing I notice sometimes is if I punch it and then let off there is a couple of loud popping noises coming from what I would say is around where the resonator is? Anybody have this problem or know how to fix it
You have stock exhaust manifolds, cats and y-pipe? With those stock parts even the LM1 won't be extremely loud. Headers and a y-pipe without cats will make the LM2 pretty darn loud at WOT.
I know having the stock manifolds cats and y pipe still keep alot of the loudness out what I am saying is I can tell that something is keeping my lm2 from what I am used to someone told me there is a chance that the resonator might have cracked and thats the reason for the backpressure and popping sound but I havent crawled under it yet to inspect it myself
It pops occasionally but once I noticed that it seemed quieter it pops 10x as much as it did which is why I was wondering if there could be something wrong with it
11 Second Club
Joined: Dec 2007
Posts: 868
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From: Charleston, SC
I have Lt's o/r Y and lm2s, mine doesnt pop whatsoever! it did on my mustang quite a bit, but the camaro has a very smooth sound! even with the LT's and o/r Y mine isnt as loud as i thought!
could it be possible that its in your head, maybe your just gettin used to it and it doesnt seem as loud as it used to be?
could it be possible that its in your head, maybe your just gettin used to it and it doesnt seem as loud as it used to be?
I have Lt's o/r Y and lm2s, mine doesnt pop whatsoever! it did on my mustang quite a bit, but the camaro has a very smooth sound! even with the LT's and o/r Y mine isnt as loud as i thought!
could it be possible that its in your head, maybe your just gettin used to it and it doesnt seem as loud as it used to be?
could it be possible that its in your head, maybe your just gettin used to it and it doesnt seem as loud as it used to be?
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11 Second Club
Joined: Dec 2007
Posts: 868
Likes: 0
From: Charleston, SC
Yea I thought that cuz I was sick when I noticed it but I am all cleared up and I might be just getting used to it but there is something about the passenger side sound inside that doesnt match up I will have to take another clip of the exhaust and compare it to the one I made a while back I guess that would be a test to help decide if its in my head
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The LoudmouthI on my old Z/28 was pretty loud. You could swap out the bullet resonator from the LMII for the LMI shotgun resonator, but I really don't think you will like it. Mine popped a lot on deceleration also. I've read a little bit about it, and I believe it has something to do with the restrictive stock y-pipe and the way the LM system flows. I was reading a very interesting thread by Patrick G on how to get 500+ RWHP on a H/C combo and he had made some very interesting points about the stock exhaust compared to available aftermarket components.
when you say pop do you mean that as like a backfire or a pop from extreme heat? My trans am would make a pop alot when I had my cats on just because the cats were so hot. Mine were not plugged either because they were just put on under warranty..
The LoudmouthI on my old Z/28 was pretty loud. You could swap out the bullet resonator from the LMII for the LMI shotgun resonator, but I really don't think you will like it. Mine popped a lot on deceleration also. I've read a little bit about it, and I believe it has something to do with the restrictive stock y-pipe and the way the LM system flows. I was reading a very interesting thread by Patrick G on how to get 500+ RWHP on a H/C combo and he had made some very interesting points about the stock exhaust compared to available aftermarket components.
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Joined: Aug 2006
Posts: 46
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From: houston
I have Lts, and tps true duals. When i let off the gas sometimes it makes a small popin noise. When i was runnin the stock y pipe with no exhaust, when my car was cold it would back fire some. Maybe you have a small crack, or something open. It could also just be in your head, i set off car alarms everywhere i go, yet i still want it louder.