LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

SLP Loudmouth

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Old Apr 24, 2004 | 12:31 AM
  #1  
CamaroSS30thAnn's Avatar
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From: NY...what a bad place for a nice car
SLP Loudmouth

Ok soo heres the story...i get alot of mixed reviews/opinions on my LM exhaust.....most ppl would say wow man thats loud..sounds nice.....then i get ppl that say it sounds like a truck it shouldnt sound like that blah blah blah....
when its cold it is snappy/raspy....alot of that goes away when it warms up but is still there a little.....

what are ur guys and gals honest opinion about the Loudmouth...what u like about it what u hate about it...specifics would be nice!!
Also any kind of way to get rid of that rasp/.snappy and what causes it?
Old Apr 24, 2004 | 08:21 AM
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IMO the loudmouth would sound even better if we had a true dual setup, due to the dummy dual design there is raspyness and with the cats in there it is worse. When I went to ORP there is no rasp at all but it is so loud you drive down the street and people expect to see a harley coming!! Next week I am putting the dynomouth on it to quiet it down some. Every exhaust will sound unique, just get soundclips from each and use your own taste and judgement.. Also the more you allow your engine to breathe, the more distinct the sound is from your exhaust. I like the loudmouth because of the stainless piping and the 2 1/2" diameter.
Old Apr 24, 2004 | 03:14 PM
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Originally posted by grygst76
IMO the loudmouth would sound even better if we had a true dual setup, due to the dummy dual design there is raspyness and with the cats in there it is worse. When I went to ORP there is no rasp at all but it is so loud you drive down the street and people expect to see a harley coming!! Next week I am putting the dynomouth on it to quiet it down some. Every exhaust will sound unique, just get soundclips from each and use your own taste and judgement.. Also the more you allow your engine to breathe, the more distinct the sound is from your exhaust. I like the loudmouth because of the stainless piping and the 2 1/2" diameter.
well it has the 3 inch I-pipe lol......would the sound of my LM become less raspy or sanppy with the installation of my SLP shorty headers?
Old Apr 24, 2004 | 03:41 PM
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i replaced the LM resonator with a dynomax 12" race bullet. sounds like a v8 now and no drone.
Old Apr 24, 2004 | 03:45 PM
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Originally posted by 1msfyter
i replaced the LM resonator with a dynomax 12" race bullet. sounds like a v8 now and no drone.
yeah i hear alot off ppl doing that.....not to sure on what to do....im kinda strapped for money..
Old Apr 24, 2004 | 03:54 PM
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headers made it sound a little different not too much though, im runnin SLP Headers, Ypipe and Loudmouth..

http://www.pcpages.com/mike3738/

sound clip at the top of the page..

sounds real raspy there, only because it was in my garage

outside it has ALOT less rasp to it
Old Apr 24, 2004 | 04:06 PM
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Originally posted by 93Z286Speed
headers made it sound a little different not too much though, im runnin SLP Headers, Ypipe and Loudmouth..

http://www.pcpages.com/mike3738/

sound clip at the top of the page..

sounds real raspy there, only because it was in my garage

outside it has ALOT less rasp to it
cant play a .mov what kinda player can i use?


also one question....what is it about LTs and the Loudmouth dont ppl like...is it the loudness??....im thinking od selling my SLP shorties and getting some LTs anybody have any opinions on that?
Old Apr 24, 2004 | 04:20 PM
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It's loud and can get really raspy at certain RPMs. I'll be throwing in a Borla in place of my resonator.
Old Apr 24, 2004 | 04:50 PM
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Originally posted by ibanez6rg
It's loud and can get really raspy at certain RPMs. I'll be throwing in a Borla in place of my resonator.
theres a few ppl around here with LS1 w/LTs and udmouth and they dont complain....is that b/c of LS1 different sound?
Old Apr 24, 2004 | 04:55 PM
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i like mine, its very loud. i get compliments all the time. The noise at WOT is just beautiful. The only badside is every car around me thinks im trying to race them because its so loud at only 2000 rpms.
Old Apr 24, 2004 | 04:57 PM
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ls1's definitely sound different with the loudmouth. I havent heard it in person but from the video clips it sounds nice.
Old Apr 24, 2004 | 05:03 PM
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Originally posted by CamaroSS30thAnn
theres a few ppl around here with LS1 w/LTs and udmouth and they dont complain....is that b/c of LS1 different sound?
I also have LT's and no cats.
Old Apr 24, 2004 | 05:16 PM
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Whats a resonator? If you put the dynomax thing on there, does that drastically change the sound? I am trying to look for the perfect exhaust... so hard!!
Old Apr 24, 2004 | 05:29 PM
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The other night, I got to hear a '97 Z28 with the SLP Loudmouth, headers, and no cats (but had stock internals). Even followed him a little around town just to really hear it...

Let me tell ya, this was hands down the worst sounding LT1 I've ever heard. Incredibly unrefined and very raspy/poppy. Had NO tone to it at all. My LS1 with only the GMMG sounds 100x better IMO.

But yeah, I pesonally think the LM sounds alright behind stock manifolds and cats. Although still too pick-up truckish (straight pipes). Anything else just makes it sound flat out horrible (same with the LS1 motor).

Mike
Old Apr 24, 2004 | 06:14 PM
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hey guys thanks......
there are days that im like hey this sounds good and then there are days im like wtf was i thinking when i bought this....
im not really to sure on what i am gonna do at this time....but i know for sure next year i wanna run a true dual settup....prolly over botth the rear axles....
thanks for the responses



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