Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

SLP loudmouth 2

Thread Tools
 
Search this Thread
 
Old Mar 15, 2007 | 01:15 AM
  #1  
jason1384's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Mar 2007
Posts: 171
Likes: 0
Default SLP loudmouth 2

Right now i have a SLP dual duals catback system but i want a louder sound. After hearing sounds on ls1sounds.com i decided that i like the SLP loudmouth the best but was too loud so i am getting the SLP loudmouth 2. My question is will i have any problems taking my current muffler off and putting in the loudmouth 2? The size diff. sems pretty big between the two. Also, will i only need to buy 1 or will I need 2? I noticed several online places having them for sale but are sold in pairs.
Reply
Old Mar 15, 2007 | 06:14 AM
  #2  
300bhp/ton's Avatar
TECH Addict
20 Year Member
Liked
Loved
 
Joined: Jun 2005
Posts: 2,660
Likes: 14
From: England
Default

totally different exhausts, you can't replace the Dual/Dual muffler with a LM2 bullet without a lot of fab work. You'll need to swap the entire catback.
Reply
Old Mar 15, 2007 | 06:59 AM
  #3  
3800RS's Avatar
TECH Fanatic
iTrader: (15)
 
Joined: Jan 2005
Posts: 1,474
Likes: 1
From: Long Island, NY
Default

dont do it. they sound very much the same. my sister has the lm2 and my neighbor has a ws6 with the stock dual dual, the cars sound identical
Reply
Old Mar 15, 2007 | 07:34 AM
  #4  
Rob98LS1's Avatar
12 Second Club
iTrader: (5)
 
Joined: Jun 2006
Posts: 662
Likes: 3
From: Sacramento
Default

that's odd, you would think bullet mufflers would be noticeable louder than a dual/dual muffler which I always hear is a very quiet yet high flowing muffler.
Reply
Old Mar 15, 2007 | 08:11 AM
  #5  
3800RS's Avatar
TECH Fanatic
iTrader: (15)
 
Joined: Jan 2005
Posts: 1,474
Likes: 1
From: Long Island, NY
Default

nope, to be honest when i hear the car i have to do a double take to see if its my sister or my neighbor lol
Reply
Old Mar 15, 2007 | 10:18 AM
  #6  
jmm98LS1's Avatar
10 Second Club
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (28)
 
Joined: Feb 2005
Posts: 3,975
Likes: 3
From: KS
Default

Originally Posted by 3800RS
dont do it. they sound very much the same. my sister has the lm2 and my neighbor has a ws6 with the stock dual dual, the cars sound identical
If the car with the dual/dual has headers & no cats and the LM2 car is bone stock, then that's remotely possible.....otherwise not a chance. Here's what a bone stock car with slp dual/dual sounds like:

http://www.ls1sounds.com/SLPdual-dua...ck-02-Hawk.mp3

Sounds like a gust of wind, lol.....no LM2 is that quiet.
Reply
Old Mar 15, 2007 | 10:51 AM
  #7  
jason1384's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Mar 2007
Posts: 171
Likes: 0
Default

So, i wouldn't be able just to switch out my current muffler and put in a loudmouth II?
Reply
Old Mar 15, 2007 | 11:06 AM
  #8  
jmm98LS1's Avatar
10 Second Club
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (28)
 
Joined: Feb 2005
Posts: 3,975
Likes: 3
From: KS
Default

Nope, the mufflers reside in different locations. The LM2 muffler goes under the rear seats before the exhaust goes over the axle, then there's a small Y junction that splits into the tailpipes.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Mar 15, 2007 | 11:27 AM
  #9  
jason1384's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Mar 2007
Posts: 171
Likes: 0
Default

well that sucks. Do you guys have any suggestions on a muffler? Like i said I like the tone of the Loudmouth but just not as loud. I don't want to have to spend a lot of money by replacing the whole catback just to get a louder sound. I am looking for something that has a nice idle and low rpm sound as well not just WOT.
Reply
Old Mar 15, 2007 | 11:34 AM
  #10  
300bhp/ton's Avatar
TECH Addict
20 Year Member
Liked
Loved
 
Joined: Jun 2005
Posts: 2,660
Likes: 14
From: England
Default

Might be worth looking at an electric cutout, although if you sold your current exhaust and bought a LM2 it probably wouldn't work out any more expensive.

As for replacing the current muffler, well you'll need to look at something of similar dimensions and style to make it easy. I actually have no ideal what the Dual/Dual looks like though.

But it will still require some form of fab work regardless.
Reply
Old Mar 15, 2007 | 12:26 PM
  #11  
ErikElvis's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: Aug 2006
Posts: 1,094
Likes: 0
From: DE La Ware
Default

I had the dual/dual and switched to th LM2. Its louder but not by a lot. Now I have LT's and it sounds good at wot.
Reply
Old Mar 15, 2007 | 12:55 PM
  #12  
jason1384's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Mar 2007
Posts: 171
Likes: 0
Default

hmmm.. How is the idle on the LM2 as compared to the D/D? Any insight would be great.
Reply
Old Mar 15, 2007 | 08:01 PM
  #13  
Rob98LS1's Avatar
12 Second Club
iTrader: (5)
 
Joined: Jun 2006
Posts: 662
Likes: 3
From: Sacramento
Default

Originally Posted by 3800RS
nope, to be honest when i hear the car i have to do a double take to see if its my sister or my neighbor lol
well thats weird, to me. My example. I orginally ran a Dynomax bullet muffler of my Lts and Ory. Loud as ****. Then put on a full length Magnaflow catback and that turned things down a big notch. And since the magnaflow is louder than a Dual/dual, I just don't understand this scenerio we got goin on right now haha.
Reply
Old Mar 15, 2007 | 08:05 PM
  #14  
Matt2105's Avatar
On The Tree
iTrader: (4)
 
Joined: Jun 2006
Posts: 113
Likes: 0
From: Jacksonville, AL
Default

Originally Posted by 3800RS
dont do it. they sound very much the same. my sister has the lm2 and my neighbor has a ws6 with the stock dual dual, the cars sound identical
Thats true. I switched over to the SLP LM2 and its not loud enough for me. I used to have the LM1 on a mustang a few years back and loved it. I was like "well i will be doing longtubes and ory so I dont want it as loud as the LM1." Personally, its not loud enough for me or raw enough. I loved the LM1s. These are much smoother and really only loud at WOT. I need longtubes quick!
Reply
Old Mar 15, 2007 | 08:20 PM
  #15  
3800RS's Avatar
TECH Fanatic
iTrader: (15)
 
Joined: Jan 2005
Posts: 1,474
Likes: 1
From: Long Island, NY
Default

yep. told you guys
Reply
Old Mar 16, 2007 | 12:59 AM
  #16  
Detoxx03's Avatar
10 Second Club
iTrader: (14)
 
Joined: Jan 2007
Posts: 7,336
Likes: 74
From: Woodward Avenue
Default

Well since I have the LM2 i'll go ahead and give my input. I don't have my lt's or cam installed yet so with just my LM2 it is a "little" bit louder than stock but not really really loud. It sounds good at idle, rev, and wot. I know it will be louder with my future mods but by how much I don't know. I hear people on here bash the LM all the time but I always forget that they are talked about the LM1 cause the LM2 sounds really good to me so far. But as far as your question you will need to replace the whole system because the bullit muffler is by the back seats.
Reply
Old Mar 16, 2007 | 01:03 AM
  #17  
Ace$nyper's Avatar
TECH Fanatic
iTrader: (8)
 
Joined: Oct 2005
Posts: 1,854
Likes: 0
From: Fort Washington Pa
Default

Originally Posted by Matt2105
Thats true. I switched over to the SLP LM2 and its not loud enough for me. I used to have the LM1 on a mustang a few years back and loved it. I was like "well i will be doing longtubes and ory so I dont want it as loud as the LM1." Personally, its not loud enough for me or raw enough. I loved the LM1s. These are much smoother and really only loud at WOT. I need longtubes quick!
If that's not loud enough for you are your hobbies going to include near by jet take offs and firing large caliber weapons with a sethascope ?
Reply
Old Mar 16, 2007 | 04:46 AM
  #18  
DaddySS's Avatar
TECH Addict
 
Joined: Dec 2001
Posts: 2,907
Likes: 1
From: Bergen County, NJ
Default

Also consider whether you plan to add headers and or high flow cats - these will make the car louder and then your dual dual might be what you need.
Reply
Old Mar 16, 2007 | 10:32 AM
  #19  
jason1384's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Mar 2007
Posts: 171
Likes: 0
Default

No, no headers, cams, or cats.
Reply
Old Mar 16, 2007 | 10:41 AM
  #20  
98ws61le's Avatar
Launching!
 
Joined: Nov 2006
Posts: 232
Likes: 0
From: Seven Nation Army
Default

i have the dual dual and long tube kooks... perfect sound
Reply



All times are GMT -5. The time now is 06:04 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE