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

Cat Back Question

Thread Tools
 
Search this Thread
 
Old Mar 13, 2007 | 11:32 AM
  #1  
BTTM's Avatar
Thread Starter
Launching!
iTrader: (1)
 
Joined: Jul 2005
Posts: 283
Likes: 0
From: Conyers, Georgia
Default Cat Back Question

In the midst of doing some research on cat-back systems. I think I've narrowed it down to 4 choices; 2 on the low end (talking about price not quality) and 2 on the high end.

On the low end:

SLP Loudmouth 2 or Magnaflow

On the high end:

GMMG or Corsa

Of the two groups, which is the best bang for the buck? I plan on adding headers later on this summer and a lid; maybe a tune but that's about it. Don't want to do much more.
Reply
Old Mar 13, 2007 | 11:39 AM
  #2  
black01_WS6's Avatar
TECH Junkie
iTrader: (13)
 
Joined: Sep 2004
Posts: 3,857
Likes: 0
From: Fort Myers, FL.
Default

GMMG or the magnaflow. If you have the money. I went with the hooker catback as it flows very well and also had quad tips.
Reply
Old Mar 13, 2007 | 12:07 PM
  #3  
Arctic2002ss's Avatar
TECH Resident
15 Year Member
 
Joined: Jul 2006
Posts: 828
Likes: 0
From: North Dallas
Default

It depends what you want. The GMMG will probably be the loudest and is a nice system. I like my Corsa but it has a unique sound that not everybody likes. The LM2 would be a good choice for a "quieter" system. I don't think I've ever heard Magnaflow in person so not sure about that one.
Reply
Old Mar 13, 2007 | 12:10 PM
  #4  
stangnightmare's Avatar
On The Tree
iTrader: (5)
 
Joined: Feb 2006
Posts: 166
Likes: 0
From: Ann Arbor, MI
Default

IMO i'd go with either corsa or magnaflow. i've heard both systems and love them both. the corsa system made my buddies car sound like it was going to eat someone!
Reply
Old Mar 13, 2007 | 12:28 PM
  #5  
eLTwerker's Avatar
TECH Enthusiast
 
Joined: May 2006
Posts: 631
Likes: 0
From: Metairie, LA
Default

I had Magnaflow. Nice sound, decent price. No rusting/fitment/clearance issues. It's a good buy.
Reply
Old Mar 13, 2007 | 12:40 PM
  #6  
ChocoTaco369's Avatar
Tech Resident
 
Joined: Jan 2006
Posts: 5,117
Likes: 3
From: Philly
Default

i vote corsa. it's not the best bang-for-the-buck for sure as it's the most expensive catback out there, but it's also the most refined and (most will agree) it's the best looking. it's quiet when you want it, loud at WOT, has its own original sound that no other catback comes close to producing and the tips are amazing if you have the money and are sure you want to keep a y-pipe setup, it's money well spent. it also flows very well.

it's overall a little too quiet for my tastes, so i welded in a manual cutout. i have never put the cap on the cutout - ever. it sounds very good with the cutout open. 100% of the sound and exhaust gas DOES NOT go through the cutout, so when i'm crusing around, i get about 1/3 corsa sound, 2/3 raw engine and at WOT, i get about 1/2 or more corsa sound and a little less than half raw engine sound (since a lot of the exhaust gases at WOT are at max velocity and bypass the cutout). i really like it like this.

very well-made system, also. lightweight, too. when i got my cutout welded on, i held the part of the I-pipe that the cutout got welded into and i was amazed how light it was for such a big tube. even being stainless steel, it was feather-light.
Reply
Old Mar 13, 2007 | 12:49 PM
  #7  
98Z28MASS's Avatar
TECH Addict
iTrader: (6)
 
Joined: Jul 2004
Posts: 2,964
Likes: 1
From: Massachusetts
Default

magnaflow clip in my sig. I liked the magnaflow a lot, but the LM II is a nice system as well. If you have the money though GMMG sounds awesome as does corsa and it has the nicest tips by far.
Reply
Old Mar 13, 2007 | 12:57 PM
  #8  
leftme4dead's Avatar
12 Second Club
 
Joined: Jun 2005
Posts: 543
Likes: 0
From: Orlando, Fl
Default

Go loudmouth
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 13, 2007 | 01:02 PM
  #9  
SSpdDmon's Avatar
TECH Addict
iTrader: (10)
 
Joined: Jun 2004
Posts: 2,918
Likes: 0
From: Commerce Twp, MI
Default

I vote Magnaflow. If you ever get to modding it with longtubes, an ORYP, and a cam, there's a good chance the LM is going to be too much. I know my stock cam'd_LT_ORYP car didn't sound that great with a LM. I put a Dynamouth bullet in to quiet it down some, but still switched to Magnaflow to make it sound good once again.
Reply
Old Mar 13, 2007 | 01:28 PM
  #10  
Pipelayaz's Avatar
TECH Fanatic
iTrader: (2)
 
Joined: Jun 2005
Posts: 1,248
Likes: 0
From: Home: Flint, MI Stationed: Charleston, SC
Default

Corsa
Reply
Old Mar 13, 2007 | 04:10 PM
  #11  
melchoir's Avatar
12 Second Club
iTrader: (4)
 
Joined: Sep 2005
Posts: 589
Likes: 0
From: Fort Myers, FL
Default

Magnaflow. Well built, stainless steel, and probably the most reasonably priced of the bunch for what you get.

Has a nice tone, isn't very raspy with LTs/ORY, isn't exceptionally loud either.
Reply
Old Mar 14, 2007 | 09:31 AM
  #12  
BTTM's Avatar
Thread Starter
Launching!
iTrader: (1)
 
Joined: Jul 2005
Posts: 283
Likes: 0
From: Conyers, Georgia
Default

Well, I appreciate all your help. I think I'm going with the new magnaflow system that I just read about in another thread.
Reply
Old Mar 14, 2007 | 12:14 PM
  #13  
2_wacko's Avatar
TECH Veteran
iTrader: (2)
 
Joined: Nov 2002
Posts: 4,274
Likes: 0
From: WestTexas
Default

On the low end, magnaflow.
On the high end, GMMG.
Reply
Old Mar 14, 2007 | 02:59 PM
  #14  
lsx24's Avatar
Banned
iTrader: (45)
 
Joined: Aug 2003
Posts: 2,556
Likes: 0
From: NC
Default

Magnaflow is the most refined sounding. Great value too, it's stainless steel. Sounds awesome in many different configurations.
Reply




All times are GMT -5. The time now is 04:35 AM.

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