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

Borlamouth too loud

Thread Tools
 
Search this Thread
 
Old Jan 5, 2016 | 08:40 PM
  #1  
TonicR6's Avatar
Thread Starter
Staging Lane
 
Joined: Aug 2014
Posts: 51
Likes: 4
Default Borlamouth too loud

Hello,

I finally got my longtube headers, ORY, and I figured a LM2 would be a quieter verision of LM1. Well, I guess it might be quieter than LM1, but it made my ears bleed. I purchased a Borla muffler and created a Borlamouth. I like the sound, however, I still feel like it is too loud. It is hurting my ears.

Is there anything I can do to quiet down my current system, or do I just need to go Magnaflow? Other option is adjustable Borla, but it sure is pricy.

I just don't want to keep changing catbacks, so I want to get it right this time.

Thanks in advance!
Reply
Old Jan 5, 2016 | 09:35 PM
  #2  
Mr.z/28's Avatar
TECH Fanatic
iTrader: (8)
 
Joined: Feb 2009
Posts: 1,433
Likes: 1
From: Los Angeles CA
Default

Its called adding cats.
Reply
Old Jan 5, 2016 | 10:49 PM
  #3  
TonicR6's Avatar
Thread Starter
Staging Lane
 
Joined: Aug 2014
Posts: 51
Likes: 4
Default

I like the smell of not having cats though.
Reply
Old Jan 6, 2016 | 01:02 AM
  #4  
omc8's Avatar
TECH Fanatic
15 Year Member
iTrader: (7)
 
Joined: May 2009
Posts: 1,539
Likes: 26
From: columbus,ohio
Default

So you thought the LM2 would be quieter , did you ?
Reply
Old Jan 6, 2016 | 03:21 AM
  #5  
HCI2000SS's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: Aug 2012
Posts: 11,137
Likes: 20
From: Howell & Fenton MI
Default

Try adding a resonator
Reply
Old Jan 6, 2016 | 04:16 AM
  #6  
oChristiano's Avatar
TECH Resident
iTrader: (6)
 
Joined: Sep 2008
Posts: 793
Likes: 2
From: SoCal, SFV
Default

Originally Posted by HCI2000SS
Try adding a resonator
Resonators in my experience do very little to quiet sound down, they just add tone etc. If you want quiet you're going to have to go to a real muffler set up, magnaflow etc.

I'm assuming OP's car is cammed? I did a Borlamouth on my boys bolt on 02 SS and it sounds amazing, I would definitely not call it ear hurting loud though.
Reply
Old Jan 6, 2016 | 06:05 AM
  #7  
HCI2000SS's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: Aug 2012
Posts: 11,137
Likes: 20
From: Howell & Fenton MI
Default

Originally Posted by oChristiano
Resonators in my experience do very little to quiet sound down, they just add tone etc. If you want quiet you're going to have to go to a real muffler set up, magnaflow etc.

I'm assuming OP's car is cammed? I did a Borlamouth on my boys bolt on 02 SS and it sounds amazing, I would definitely not call it ear hurting loud though.
Yeah that's a good point, but I'm wondering if the OP might be getting some rasp instead of a clean loud sound. I have a Magna mouth on mine with long tubes, ORY and a big cam and I wouldn't call it "hurt my ears loud" by any means lol. Just has a nice deep non raspy sound that's still loud if that makes sense
Reply
Old Jan 6, 2016 | 06:10 AM
  #8  
TonicR6's Avatar
Thread Starter
Staging Lane
 
Joined: Aug 2014
Posts: 51
Likes: 4
Default

Its supercharged, if that makes much of a difference.
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 Jan 7, 2016 | 11:13 AM
  #9  
KingJacobo's Avatar
Launching!
 
Joined: Aug 2011
Posts: 216
Likes: 0
From: Kennesaw, GA
Default

Add moroso Spiral flows or another bullet. Spiral flows are my mufflers and they are quiet for bullets, average volume for a performance muffler.

Better than a regular resonator.
Reply
Old Jan 7, 2016 | 04:42 PM
  #10  
TonicR6's Avatar
Thread Starter
Staging Lane
 
Joined: Aug 2014
Posts: 51
Likes: 4
Default

Originally Posted by KingJacobo
Add moroso Spiral flows or another bullet. Spiral flows are my mufflers and they are quiet for bullets, average volume for a performance muffler.

Better than a regular resonator.
In addition to the Borla muffler, or in place of?
Reply
Old Jan 8, 2016 | 08:27 PM
  #11  
KingJacobo's Avatar
Launching!
 
Joined: Aug 2011
Posts: 216
Likes: 0
From: Kennesaw, GA
Default

Originally Posted by TonicR6
In addition to the Borla muffler, or in place of?
Obviously more mufflers would be quieter, but I would just swap them and sell the borla
Reply
Old Jan 8, 2016 | 09:32 PM
  #12  
juniorssrollin's Avatar
On The Tree
iTrader: (1)
 
Joined: Nov 2008
Posts: 147
Likes: 1
Default

Ask around if anyone would be willing to trade you a different system.
I have SLP dual dual setup I might be getting rid of soon to make more sound.
Reply
Old Jan 9, 2016 | 09:58 PM
  #13  
Fourth-Gen Man's Avatar
Launching!
10 Year Member
 
Joined: Dec 2012
Posts: 206
Likes: 10
From: California Central Valley
Default

If I were you I'd buy the SLP Powerflo conversion. Quiets it down quite a bit.
Reply
Old Jan 12, 2016 | 12:59 PM
  #14  
blkbird's Avatar
TECH Fanatic
20 Year Member
Photogenic
Liked
Loved
iTrader: (28)
 
Joined: Mar 2005
Posts: 1,678
Likes: 14
From: san antonio, tx
Default

Originally Posted by KingJacobo
Add moroso Spiral flows or another bullet. Spiral flows are my mufflers and they are quiet for bullets, average volume for a performance muffler.

Better than a regular resonator.
This is what I did. In place of the LM resonator. Not too bad.
Reply
Old Jan 12, 2016 | 05:03 PM
  #15  
KingJacobo's Avatar
Launching!
 
Joined: Aug 2011
Posts: 216
Likes: 0
From: Kennesaw, GA
Default

Originally Posted by blkbird
This is what I did. In place of the LM resonator. Not too bad.
Glad you like it!
Reply
Old Jan 13, 2016 | 12:34 AM
  #16  
Fullblast's Avatar
TECH Regular
iTrader: (17)
 
Joined: Nov 2015
Posts: 402
Likes: 1
From: Houston
Default

I have long tubes and catless y pipe going to a Borla adjustable exhaust with the highest flowing restrictor plate and it sounds really kickass, but not overly loud or obnoxious

I drive with the windows up sometimes and there's not much cab noise and very tolerable. Borla nailed it right on the money with 75% going straight out and 25% through the muffler.

It does have a small bit of raspiness if you give more gas at lower speeds than needed. You can cruise around town in 5th or 6th and hardly notice....and its especially useful while passing the police..

Last edited by Fullblast; Jan 17, 2016 at 08:34 PM.
Reply
Old Jan 17, 2016 | 08:14 PM
  #17  
02T/A-WS6's Avatar
12 Second Club
iTrader: (4)
 
Joined: Dec 2007
Posts: 627
Likes: 12
From: NE PA
Default

I had LT, ORY, SLP LM1 as well and even though it's only a fair weather car it was just obnoxious....it's crazy for me to say that because I love loud, however it was very raspy and pierced your ear drums around 4500rpms. Switched out the LM1 resonator for a MagnaFlow bullet muffler (still straight through)...made a world of difference, took out 95% of the rasp and still kept a great tone and is still LOUD! I can't remember how much the magna flow bullet muffler was but I wanna say around 100 bucks

Reply
Old Jan 17, 2016 | 08:23 PM
  #18  
HCI2000SS's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: Aug 2012
Posts: 11,137
Likes: 20
From: Howell & Fenton MI
Default

Originally Posted by 02T/A-WS6
I had LT, ORY, SLP LM1 as well and even though it's only a fair weather car it was just obnoxious....it's crazy for me to say that because I love loud, however it was very raspy and pierced your ear drums around 4500rpms. Switched out the LM1 resonator for a MagnaFlow bullet muffler (still straight through)...made a world of difference, took out 95% of the rasp and still kept a great tone and is still LOUD! I can't remember how much the magna flow bullet muffler was but I wanna say around 100 bucks

02 Trans Am WS6 burnout - YouTube
2002 trans am ws6 dyno run 2 - YouTube
You have the 14419 muffler correct?
Reply
Old Jan 17, 2016 | 08:54 PM
  #19  
Detoxx03's Avatar
10 Second Club
iTrader: (14)
 
Joined: Jan 2007
Posts: 7,336
Likes: 74
From: Woodward Avenue
Default

I went from LM2 to Borlamouth to the Powerflo conversion. The latter was very satisfying for a fbody with a y pipe setup. A x pipe setup will always sound superior.
Reply
Old Jan 17, 2016 | 09:10 PM
  #20  
02T/A-WS6's Avatar
12 Second Club
iTrader: (4)
 
Joined: Dec 2007
Posts: 627
Likes: 12
From: NE PA
Default

Originally Posted by HCI2000SS
You have the 14419 muffler correct?
Off hand I'm not sure, it's stainless with 3'' inlet and outlet, round in shape, maybe 6'', and see straight through, with a perforated ''barrell'' and glass packing in the outer round part. Hope that helps....it's been years sorry haha

Side note I do remember having to have the slp parts of the cat back opened up to fit the 3''
Reply



All times are GMT -5. The time now is 03:08 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