[1QWIKTB]

I just installed my LMF catback the other day and it's loud but nearly as loud as I was expecting. Although I had a flowmaster 40 series in place of the stock muffler and I removed the resonator and I'm sure that would explain why it's not much louder to me.

Anyways, I don't know if it's supposed to sound like this or not but during wot and sometime crusing around at 2.5k - 3k rpms it echoes really strongly. It's a hard sound to describe but I just wanted to make sure that it was supposed to sound that way.

 

[Blazen]

anyway to get a sound clip? Could be breaking in too. I know over the time, it will get louder as it all settles in, etc. Not sure if what you are hearing is normal or not.

 

[Big D's SS]

Normally that is resonance. I had the SLP Loudmouth on my 00 SS Camaro and it had that sound. It got on my nerves.

 

[Blades]

It may not be what others are talking about.. It might be the muffler vibrating at a very high hz.. Meaning.. very fast and short travel. Replicate the sound in park.. Take a towel or glove and place some force onto the muffler to "stabilize" it.. My truck seemed to start this sound at 2100rpm.. I had a friend hold it at that rpm.

Does it kinda sound like blowing across the top of an empty beer bottle? What I did was take 3 hose clamps and bent them to the size of the muffler.. Wrapped em around so that they hugged the muffler.. Wedged some small paper towel fragments between the spots where the adjustment screws for the clamps were.. No more weird bellowing echo. Kinda ghetto on paper but it worked out nicely.

The muffler is just too big.. It needs more structural stabilization esp in the middle.

 

[1QWIKTB]

It may not be what others are talking about.. It might be the muffler vibrating at a very high hz.. Meaning.. very fast and short travel. Replicate the sound in park.. Take a towel or glove and place some force onto the muffler to "stabilize" it.. My truck seemed to start this sound at 2100rpm.. I had a friend hold it at that rpm.

Does it kinda sound like blowing across the top of an empty beer bottle? What I did was take 3 hose clamps and bent them to the size of the muffler.. Wrapped em around so that they hugged the muffler.. Wedged some small paper towel fragments between the spots where the adjustment screws for the clamps were.. No more weird bellowing echo. Kinda ghetto on paper but it worked out nicely.

The muffler is just too big.. It needs more structural stabilization esp in the middle.

:rofl: that's EXACTLY what it sounds like! I'll have to try that out and see if that helps.

 

[1QWIKTB]

:rofl: that's EXACTLY what it sounds like! I'll have to try that out and see if that helps.

I'm going to try that tomorrow to see if it helps, but it pisses me off to ghetto rig a brand new catback!!

 

[Blades]

When my TBSS gets up here I'll take pics.. Doesn't look too bad.. Much better than having it sound like that.. Ugh.. Try something with an echo. Like a small garage.. Rev it up to 2k.. Nasty and not in a good way.

 

[Guest]

What your hearing is DRONE. Very trypical with straight-through style mufflers. What it is resonance from inside your muffler just a pitch higher in frequency than the resonance leaving your tailpipe. Thats when you get that low bass-sounding rumble..

 

[1QWIKTB]

What your hearing is DRONE. Very trypical with straight-through style mufflers. What it is resonance from inside your muffler just a pitch higher in frequency than the resonance leaving your tailpipe. Thats when you get that low bass-sounding rumble..

It's definately not drone. My previous setup was a small 40 series Flowmaster without the resonator and I used to drive an RSX with a Greddy catback , so I definately know what drone sounds like! I actually put a couple of pipe clamps around the muffler pretty tight like Blades did and that seems to have gotten rid of about 90% of the noise I was hearing. It does drone a little bit though, but I don't mind it at all.

 

[Kadernak]

Ive never noticed that with my LMF... maybe my music is just too loud. :dunno:

Blades when is your car coming up to CT? Maybe we could meet up sometime, I would really like a ride in a fast SS.

 

[Blades]

Dude its already here. Whats your schedule like?