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

LT headers with a regular muffler?

Thread Tools
 
Search this Thread
 
Old Mar 6, 2009 | 01:09 PM
  #1  
dsz28's Avatar
Thread Starter
Launching!
 
Joined: Feb 2005
Posts: 296
Likes: 0
From: Schaumburg
Default LT headers with a regular muffler?

Currently I have LT headers with a Magnaflow exhaust. I was thinking of making the car more of a daily driver but its way too loud.
Any of you guys using a regular muffler with LT headers?
Reply
Old Mar 7, 2009 | 08:09 AM
  #2  
BAD2000TA's Avatar
12 Second Club
20 Year Member
Photogenic
Photoriffic
iTrader: (6)
 
Joined: Apr 2004
Posts: 1,338
Likes: 1
From: Friendswood
Default

If you can find the SLP dual/dual muffler, you would have a good system that is pretty quiet, yet flows well.
Reply
Old Mar 7, 2009 | 11:48 AM
  #3  
jrob56's Avatar
TECH Addict
iTrader: (39)
 
Joined: Jul 2006
Posts: 2,153
Likes: 0
From: Indianapolis, IN
Default

Originally Posted by BAD2000TA
If you can find the SLP dual/dual muffler, you would have a good system that is pretty quiet, yet flows well.
x2 this is about the quietest you are gonna get and still flow well, after that I think your next step is going back to the stock catback which will be real quiet but doesn't flow well...I am running my stock catback now on LT's and its silent, my true duals go on this week!
Reply
Old Mar 7, 2009 | 11:51 AM
  #4  
primer84z's Avatar
TECH Regular
15 Year Member
iTrader: (7)
 
Joined: Jan 2008
Posts: 426
Likes: 0
Default

Your talking about the magnaflow bullet type? I have a magnaflow regular style muffler on my car. It sounds about stock and still puts down 350 rwhp. But I have a catted LT setup.
Reply
Old Mar 7, 2009 | 12:30 PM
  #5  
jrob56's Avatar
TECH Addict
iTrader: (39)
 
Joined: Jul 2006
Posts: 2,153
Likes: 0
From: Indianapolis, IN
Default

Originally Posted by primer84z
Your talking about the magnaflow bullet type? I have a magnaflow regular style muffler on my car. It sounds about stock and still puts down 350 rwhp. But I have a catted LT setup.
No Im pretty sure he is talking about the magnaflow catback in is sig, with the regular style straight through muffler...
Reply
Old Mar 7, 2009 | 04:03 PM
  #6  
primer84z's Avatar
TECH Regular
15 Year Member
iTrader: (7)
 
Joined: Jan 2008
Posts: 426
Likes: 0
Default

must be running an off-road Y then. My catted setup is quiet.
Reply
Old Mar 7, 2009 | 04:06 PM
  #7  
jrob56's Avatar
TECH Addict
iTrader: (39)
 
Joined: Jul 2006
Posts: 2,153
Likes: 0
From: Indianapolis, IN
Default

Originally Posted by primer84z
must be running an off-road Y then. My catted setup is quiet.
ya idk, to most its quiet even with the off-road Y...
Reply
Old Mar 7, 2009 | 04:51 PM
  #8  
02 BLK WS6's Avatar
10 Second Club
iTrader: (11)
 
Joined: May 2005
Posts: 1,689
Likes: 2
From: Glen Carbon, IL
Default

I have the I pipe and muffler on my car still. I do have a 3'' cutout off my ORY when it is needed.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

10 Reasons Daily Driving a Swap Project SUCKS! (& 1 Reason to Do It Anyway)

 Michael S. Palmer
story-1

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-2

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-3

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-4

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-5

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

 Verdad Gallardo
story-6

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

 Pouria Savadkouei
story-7

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

 Verdad Gallardo
story-8

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-9

Top 10 Most Powerful Chevy Trucks Ever Made!

 
Old Mar 7, 2009 | 05:10 PM
  #9  
Badguy7's Avatar
TECH Addict
iTrader: (6)
 
Joined: May 2007
Posts: 2,242
Likes: 0
From: Odessa, TX
Default

Add cats if you have an Off-Road y pipe, that'll tone it down some. If you go back to stock, it's just gonna flow poorly.

Honestly though, i dont see how your setup is too loud for a daily driver??
Reply
Old Mar 7, 2009 | 06:52 PM
  #10  
RS_SS69's Avatar
TECH Enthusiast
iTrader: (31)
 
Joined: Jan 2006
Posts: 726
Likes: 0
From: Denver, CO
Default

Defidently go Dual/Dual if you want it quite and tame for a DD, Im running pacesetter LT's, ory and dual/dual. Its nice has a throaty sound and is perfect for the DD.

I want mine a bit louder so a hooker catback is going on next week but the old dual/dual is spoken for sorry.
Reply
Old Mar 8, 2009 | 01:08 PM
  #11  
dsz28's Avatar
Thread Starter
Launching!
 
Joined: Feb 2005
Posts: 296
Likes: 0
From: Schaumburg
Default

Thanks for the comments.
I do have an offroad y-pipe.
Does it make any sense to just replace the magnaflow muffler & tips with a stock one? Would that work? If I did I believe it would be much more quiet. Would there be a noticable power loss?
Reply
Old Mar 8, 2009 | 01:13 PM
  #12  
Badguy7's Avatar
TECH Addict
iTrader: (6)
 
Joined: May 2007
Posts: 2,242
Likes: 0
From: Odessa, TX
Default

Yea, it'll work and it will be alot more quiet and im sure you'll notice somewhat of a power loss but probably not alot. Just enough for you to notice it.
Reply
Old Mar 9, 2009 | 09:41 AM
  #13  
99SSragtop's Avatar
12 Second Club
 
Joined: Apr 2002
Posts: 680
Likes: 0
From: Cave Creek, AZ- Canada Also.
Default

stock muffler can be very raspy. I have a magnaflow muffler with cats and its very quiet until you get on it.
Reply




All times are GMT -5. The time now is 01:53 PM.

story-0
10 Reasons Daily Driving a Swap Project SUCKS! (& 1 Reason to Do It Anyway)

Slideshow: 10 reasons daily-driving a swap project might not be for you. Or is it?

By Michael S. Palmer | 2026-06-17 09:39:05


VIEW MORE
story-1
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-2
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-06-18 10:26:23


VIEW MORE
story-3
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-4
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-5
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-6
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-7
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-8
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-9
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