Loudmouth with Sweet Thunder muffler
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Staging Lane
Joined: Dec 2002
Posts: 88
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From: Glen Burnie, Maryland
Loudmouth with Sweet Thunder muffler Hey everyone, I was wonder, has anyone tried puttin a sweet thunder chambered muffler inplace of the resonator on their SLP loudmouth exhaust? If so, how does it sound compared to what it sounded like before? And how does the loudmouth compare to a true dual with an x pipe?
On The Tree
Joined: Nov 2001
Posts: 109
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From: Houston, Tx
Re: Loudmouth with Sweet Thunder muffler I tried it. It made the loudmouth sound a lot better. It sounded more refined and less raw sounding. To me the LM sounded like a truck exhaust before. If I had a LM, I would definately replace the resonator for the Sweet Thunder chambered muffler. It also cured some of the droning as well. I'd say it cut it about in half. I've since chang to dual exhaust(x pipe exiting the rear of the car) and I can tell you that it doesn't even compare to the LM. THe duals sound better than any y pipe I've heard. Even my buddy with a 2000 Gt with Flowmasters likes the sound of my car over his. Go figure. Oh yea, sorry I don't have any sound clips of the old LM or my dual exhaust. Good luck 
I bought a loudmouth, then installed a bullet to cut some of the rasp which it did. I then bought 2 sweet thunder mufflers and some mandrel stainless steel bends. Had the mufflers welded into the LM to make it look like a GMMG. It cut the raspyness down a lot, but it's still there.
Also the largest internal baffle on the sweet thunder mufflers is 2.5" so I doubt it would be a good idea to put one in the I-pipe since that would neck it down severely.
Also the largest internal baffle on the sweet thunder mufflers is 2.5" so I doubt it would be a good idea to put one in the I-pipe since that would neck it down severely.
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TECH Addict
Joined: Dec 2001
Posts: 2,907
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From: Bergen County, NJ
Originally Posted by FAST LS1
I'm guessing that's a new custom muffler they're making, their site only lists chambered mufflers with 2.5" cores?
On The Tree
Joined: Mar 2002
Posts: 174
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From: San Diego
On the other board there was a guy that dyno'd his car with a chambered muffler in the I-pipe instead of the resonator and lost something like 50 hp with it. (I believe he had headers, as well). I had been considering this for quite awhile and I remember thinking to myself after reading that guys post that I was done considering it.
I have thought about shorter chambered mufflers in the tailpipe though, might work?
I have thought about shorter chambered mufflers in the tailpipe though, might work?
On the other board there was a guy that dyno'd his car with a chambered muffler in the I-pipe instead of the resonator and lost something like 50 hp with it. (I believe he had headers, as well). I had been considering this for quite awhile and I remember thinking to myself after reading that guys post that I was done considering it.
i could see 5-10 with replacing the resonator with a muffler, but 50? 
Originally Posted by Mike's02Z28M6
On the other board there was a guy that dyno'd his car with a chambered muffler in the I-pipe instead of the resonator and lost something like 50 hp with it. (I believe he had headers, as well). I had been considering this for quite awhile and I remember thinking to myself after reading that guys post that I was done considering it.
I have thought about shorter chambered mufflers in the tailpipe though, might work?
I have thought about shorter chambered mufflers in the tailpipe though, might work?
Has anyone had problems with fumes coming into the cabin with dumps under the car? Or perhaps problems with the law? From what I hear, Xpipe sounds best like you guys say, but if I have to smell like gas :p
On The Tree
Joined: Mar 2002
Posts: 174
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From: San Diego
I stand corrected, you guys are right, it was the cc that last the 50 hp. BUT, I'm sure the guy that dyno'd his sweet muffler in the i-pipe lost a lot more then 10 hp. Again, after considering this for more then a year, after reading his post I was settled on SM in I-pipe as a no good idea.
Originally Posted by Mike's02Z28M6
I stand corrected, you guys are right, it was the cc that last the 50 hp. BUT, I'm sure the guy that dyno'd his sweet muffler in the i-pipe lost a lot more then 10 hp. Again, after considering this for more then a year, after reading his post I was settled on SM in I-pipe as a no good idea.
Originally Posted by 2 SLOW
Time2kill, why does ur sig pic say high 10's in the quarter mile??? yet ur best run is 11.6...
Once it was tuned I've been running 10.80s and 10.90s at about a ~3700-3800lb raceweight.