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

advice on quiet catback

Old Apr 30, 2008 | 03:50 PM
  #1  
black00ssFL's Avatar
Thread Starter
TECH Fanatic
iTrader: (24)
 
Joined: Oct 2006
Posts: 1,002
Likes: 2
From: Ocala, FL
Default advice on quiet catback

Ok, I must be getting old. I currently have a 3" true dual, under the axle, exhaust setup with magnaflow 4x9's. It's just getting to loud for me to drive it around town. I'm gonna be going back to a Y pipe setup (fabbed up by me) and into a quiet catback. I'll be using a 3" electric cutout after the Y so power robbing issues are not there. I like the loudness.....but not all the time, which is why I think going back to a stock style setup would be best for me. I've been looking at hooker, elderbrock, and the dual dual (although it's not made anymore). I'm just looking for some input from those who have had multiple systems on their car. Btw, car does have the MS4 cam and should sound really sick with the cutout.
Reply
Old Apr 30, 2008 | 04:47 PM
  #2  
omcar's Avatar
TECH Fanatic
iTrader: (10)
 
Joined: Jun 2006
Posts: 1,333
Likes: 0
From: Pennsylvania
Default

Magnaflow is a straight thru design that flows well...
Reply
Old Apr 30, 2008 | 04:53 PM
  #3  
94'BLKBRD's Avatar
TECH Addict
iTrader: (76)
 
Joined: May 2005
Posts: 2,976
Likes: 0
From: SoCal
Default

x2 on magnaflow
Reply
Old Apr 30, 2008 | 05:35 PM
  #4  
black00ssFL's Avatar
Thread Starter
TECH Fanatic
iTrader: (24)
 
Joined: Oct 2006
Posts: 1,002
Likes: 2
From: Ocala, FL
Default

But will the magnaflow be all that quiet with an ORY and longtubes? My main concern is it being quiet, and not stock. Hell, I might even just throw on a stock catback even though it will really hinder power when the cutout is closed.
Reply
Old Apr 30, 2008 | 06:30 PM
  #5  
RevGTO's Avatar
Pontiacerator
20 Year Member
Photogenic
Liked
Loved
iTrader: (12)
 
Joined: Nov 2003
Posts: 6,216
Likes: 236
From: Wichita KS / Rancho San Diego
Default

Hooker. Very quiet but you won't give up much hp.
Reply
Old Apr 30, 2008 | 06:39 PM
  #6  
santiago's Avatar
TECH Resident
iTrader: (28)
 
Joined: Sep 2004
Posts: 987
Likes: 0
From: norcal
Default

i run a stock catback with 2 cut outs......quiet/loud all with just a switch.
Reply
Old May 1, 2008 | 09:17 AM
  #7  
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

I think a hooker catback or the dual/dual are going to be your best bet, with the dual/dual being the quietest by a little bit.
Reply
Old May 1, 2008 | 09:24 AM
  #8  
bluehawk2's Avatar
10 Second Club
iTrader: (74)
 
Joined: Oct 2005
Posts: 1,439
Likes: 2
From: Tupelo, MS
Default

If you can find a dual dual that would be the one to get. If you can't find that get the magnaflow. I have a Magnaflow dual dual system with a ory and a 232/236 595/601 cam. My car is quiet until it take the cutout off.

If I was going to go back to a y-pipe, I would get a y with a good merge to help out with that little bit of rasp that you will have.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Brett Foote
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

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

 Pouria Savadkouei
story-6

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

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old May 1, 2008 | 09:28 AM
  #9  
black00ssFL's Avatar
Thread Starter
TECH Fanatic
iTrader: (24)
 
Joined: Oct 2006
Posts: 1,002
Likes: 2
From: Ocala, FL
Default

Originally Posted by bluehawk2
If you can find a dual dual that would be the one to get. If you can't find that get the magnaflow. I have a Magnaflow dual dual system with a ory and a 232/236 595/601 cam. My car is quiet until it take the cutout off.

If I was going to go back to a y-pipe, I would get a y with a good merge to help out with that little bit of rasp that you will have.
Flowmaster merge or custom Y will be used. I'll be making the y pipe myself outta 3" mandrel bends. Real easy to do with a chop saw and exhaust pipe flare tool.
Reply
Old May 1, 2008 | 09:38 AM
  #10  
JohnnyC's Avatar
TECH Fanatic
 
Joined: May 2005
Posts: 1,135
Likes: 1
From: The 'Burgh, PA
Default

Hooker!
Reply
Old May 1, 2008 | 01:46 PM
  #11  
bluehawk2's Avatar
10 Second Club
iTrader: (74)
 
Joined: Oct 2005
Posts: 1,439
Likes: 2
From: Tupelo, MS
Default

Sounds good on the y-pipe. As far as the hooker................My friend has hooker on his car. It is a stock car with LT's and ORY. His car sounds good with hooker. The only reason I don't like it is because it is not stainless. You won't go wrong with any of the three mentioned. The quietest of the three would prob be the dual dual.
Reply
Old May 1, 2008 | 04:26 PM
  #12  
SOM 02's Avatar
On The Tree
iTrader: (10)
 
Joined: Jul 2005
Posts: 113
Likes: 0
From: bay area
Default

i wanted my car to be quiet also so i went back to a stock z28 catback with a 3 inch cutout after the Y. my car sounds like it has a 228 cam in it not a 408ci with a big cam
Reply
Old May 1, 2008 | 04:43 PM
  #13  
mcflyz28's Avatar
TECH Enthusiast
 
Joined: Nov 2001
Posts: 693
Likes: 0
From: Wilmington, DE
Default

I must be getting old went from true duals dumped to catted y and magnaflow catback
Reply
Old May 1, 2008 | 04:46 PM
  #14  
DuronClocker's Avatar
11 Second Club
15 Year Member
iTrader: (25)
 
Joined: Nov 2005
Posts: 1,241
Likes: 1
From: Clearwater, FL
Default

I say Hooker. I didn't like my Magnaflow. Was very quiet with the stock manifolds/cats and such, but when I did the heads/cam/LTs/ORY and everything, it was VERY loud and messy sounding.

Put a Hooker on it and it got quieter and got a much cleaner sound.
Reply
Old May 1, 2008 | 04:53 PM
  #15  
Deeavi's Avatar
TECH Enthusiast
iTrader: (16)
 
Joined: Nov 2003
Posts: 670
Likes: 2
From: Bowman, SC
Default

Dynomax Super Turbo 3" in dual 3" out.

I tried a bunch of mufflers and finally decided on this one - sounds good, but not Loud.
Reply
Old May 4, 2008 | 08:24 PM
  #16  
black00ssFL's Avatar
Thread Starter
TECH Fanatic
iTrader: (24)
 
Joined: Oct 2006
Posts: 1,002
Likes: 2
From: Ocala, FL
Default

Thanks for everyone's input. I just scored a killer deal on Ebay (at least I think so) for a dual dual catback....used to be an SLP CME, which is the same as a dual/dual. Here's the link http://cgi.ebay.com/ebaymotors/ws/eB...MEWN:IT&ih=018
So, now all I need to do is order the dmh cutout and I'll be all set!
Reply
Old May 4, 2008 | 08:59 PM
  #17  
99Hawk262's Avatar
11 Second Club
iTrader: (19)
 
Joined: Jan 2005
Posts: 2,491
Likes: 1
From: Little Rock
Default

You're right about the cam sounding sick with the cutout open. Mine chops much harder with the open cutout than it did with the TD's. I love stoplights with a car sitting next to you on the passenger side . With the cutout closed, the average joe would have no clue I have a cam. The dual/dual is stock quiet, even with LT's, ORY, cam.
Reply


Thread Tools
Search this Thread

All times are GMT -5. The time now is 03:43 AM.

story-0
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 | 2026-06-04 18:13:20


VIEW MORE
story-1
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 | 2026-05-28 11:05:11


VIEW MORE
story-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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