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

cat back muff too noisy

Thread Tools
 
Search this Thread
 
Old Aug 24, 2005 | 01:57 PM
  #1  
robertbartsch's Avatar
Thread Starter
TECH Veteran
 
Joined: Aug 2002
Posts: 4,055
Likes: 1
From: Hartsdale, NY
Default cat back muff too noisy

I have FLP - LT headers, cats, a 3 inch Y pipe and a Hooker cat back muff....


This system is loud as HELL!

I used to like it but my H/C car is a stealthy sleeper. The muff system does not seem to fit the sleeper image that I am trying to maintain. (I like beating the **** out of $90K porsch-ies and having their owners think I am driving a stock F-body)

Any ideas for replacing or modifying my cat back so it can be as quiet as a stock (e.g., a small block mouse) exhuast?
Reply
Old Aug 24, 2005 | 02:10 PM
  #2  
blkZ28spt's Avatar
11 Second Club
 
Joined: Feb 2003
Posts: 5,524
Likes: 1
From: The South
Default

You telling me that the the hooker cat-back muffer is loud as hell?!?!

Something is wrong or you don't know what loud as hell is, hooker's cat-back is one of the three quietest/best flowing made for our cars.

The only thing I can think of that would be quieter is the SLP dual/dual and/or adding cats.

Last edited by blkZ28spt; Aug 24, 2005 at 02:53 PM.
Reply
Old Aug 24, 2005 | 02:51 PM
  #3  
MeentSS02's Avatar
Kleeborp the Moderator™
20 Year Member
iTrader: (11)
 
Joined: Mar 2004
Posts: 10,316
Likes: 6
From: Dayton, OH
Default

Headers were a bad idea if you wanted stealthy...you won't find much quieter than a Hooker. I specifically got rid of mine because I thought it was TOO quiet.
Reply
Old Aug 24, 2005 | 03:12 PM
  #4  
cyphur's Avatar
TECH Senior Member
iTrader: (10)
 
Joined: Mar 2003
Posts: 8,009
Likes: 0
From: North Texas
Default

you apparently have no idea what loud is.

hooker is QUIET until you really open her up, even then its pretty quiet. if you want stock-like quiet....you're going to need to stick with the stock exhaust. too bad you're going to loose some power.

throw on a bullit or something like that. anything is going to be loud @ 6500+ rpms.
Reply
Old Aug 26, 2005 | 10:45 AM
  #5  
robertbartsch's Avatar
Thread Starter
TECH Veteran
 
Joined: Aug 2002
Posts: 4,055
Likes: 1
From: Hartsdale, NY
Default

OK so you guys enjoy loud cars. I'm tired of mine.

Ho about some suggestions on making it less noisy? Can I splice in a muff in teh Y-pipe, add some resonators to the tail pipes, or what?
Reply
Old Aug 26, 2005 | 10:52 AM
  #6  
MeentSS02's Avatar
Kleeborp the Moderator™
20 Year Member
iTrader: (11)
 
Joined: Mar 2004
Posts: 10,316
Likes: 6
From: Dayton, OH
Default

Okay...you have a cam, and you have headers. Those two things make your car incredibly loud. If you want it quiet, make sure you have cats installed, and put a stock exhaust on or SLP dual/dual. If you want your power from time to time, get an electric cutout installed and call it a day.
Reply
Old Aug 26, 2005 | 10:55 AM
  #7  
TAQuickness's Avatar
TECH Junkie
iTrader: (28)
 
Joined: Jan 2004
Posts: 3,250
Likes: 1
From: Houston
Default

Cyphur hit the nail on the head....

Add cats to your Y and a stock cat back. that will make it quieter, but you will loose some power.
Reply
Old Aug 26, 2005 | 11:33 AM
  #8  
Tirefire's Avatar
TECH Resident
iTrader: (1)
 
Joined: Mar 2005
Posts: 922
Likes: 1
From: El Paso, Tx
Default

Well. how loud are we talking about here?? I just purchased kooks 1 3/4 stepped to 1 7/8 race headers, catted y-pipe and hooker cat back and was wondering how much louder it's going to be over stock. Can we say a fair comparison would be a 97 stock Lt1 with borla exhaust would sound somewhat to the header set-up I purchased. Sorry for hijacking....
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 Aug 26, 2005 | 11:57 AM
  #9  
LPE SS's Avatar
Launching!
iTrader: (3)
 
Joined: Dec 2002
Posts: 280
Likes: 0
From: Ann Arbor, Mi
Default

Originally Posted by TAQuickness
Cyphur hit the nail on the head....

Add cats to your Y and a stock cat back. that will make it quieter, but you will loose some power.

You guys both missed the nail...re-read his post...
headers, CATS, a three inch
.

robertbartsch - I wouldn't bother with adding anymore restrictions. Would kind of defeat your purpose in the mod process right? I have to agree however with the rest of the 'love the noise' members that your exhaust is pretty quite compared to other popular systems (borla, corsa, etc). You might want to consider another muffler all together...SLP dual/dual maybe?
Reply
Old Aug 26, 2005 | 12:07 PM
  #10  
BAN-LS1's Avatar
TECH Fanatic
iTrader: (16)
 
Joined: Dec 2004
Posts: 1,182
Likes: 0
From: Jefferson, Ga
Default

Dual/dual is a good choice, my buddy has cam, headers and ORY with his dual/dual on his firehawk its not loud at all, you can pick on up on ebay for around $100.
Reply
Old Aug 26, 2005 | 12:31 PM
  #11  
bayer-z28's Avatar
TECH Veteran
20 Year Member
iTrader: (14)
 
Joined: Apr 2005
Posts: 4,085
Likes: 1
From: N. Falmouth MA
Default

I allways heard that the Hooker C/B was a bit Quiet...

]THIS is loud! My latest...
Reply
Old Aug 26, 2005 | 12:58 PM
  #12  
blkZ28spt's Avatar
11 Second Club
 
Joined: Feb 2003
Posts: 5,524
Likes: 1
From: The South
Default

Originally Posted by robertbartsch
OK so you guys enjoy loud cars. I'm tired of mine.
But your car isn't loud. *You do have cats* Your car really isn't that loud, trust us!

Loud is something more like mine: longtubes, big cam (MS3), and dumped duals with bullet mufflers. NO comparison there.


Edited: I forgot you had cats. Dang. Well, I guess you have about as quiet as it will get. It's really not that loud, maybe you could find somebody with a LOUD car in your area for comparison, just to put yours in perspective? I guess the dual/dual isn't much quieter.

Or are you willing to lose power to make it quieter? I don't know what putting a muffler, say an XR-1, in the I-pipe would do. Might be worth a shot though.

Last edited by blkZ28spt; Aug 26, 2005 at 01:24 PM.
Reply
Old Aug 26, 2005 | 01:03 PM
  #13  
MeentSS02's Avatar
Kleeborp the Moderator™
20 Year Member
iTrader: (11)
 
Joined: Mar 2004
Posts: 10,316
Likes: 6
From: Dayton, OH
Default

Eh, he's already got cats according to his first post...and from my experience, my Hooker and SLP dual/dual were equally loud cruising, and the Hooker was a little louder at WOT.
Reply
Old Aug 26, 2005 | 01:04 PM
  #14  
BAN-LS1's Avatar
TECH Fanatic
iTrader: (16)
 
Joined: Dec 2004
Posts: 1,182
Likes: 0
From: Jefferson, Ga
Default

Originally Posted by robertbartsch
I have FLP - LT headers, cats, a 3 inch Y pipe and a Hooker cat back muff....
HE HAS CATS!!!!
Reply
Old Aug 26, 2005 | 01:20 PM
  #15  
MeentSS02's Avatar
Kleeborp the Moderator™
20 Year Member
iTrader: (11)
 
Joined: Mar 2004
Posts: 10,316
Likes: 6
From: Dayton, OH
Default

Meow cats? Calico? Black?

Reply
Old Aug 26, 2005 | 01:39 PM
  #16  
taintedmeat's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: Apr 2005
Posts: 1,625
Likes: 0
From: ATX
Default

Are your cats gutted?


btw - lmfaooo you said muff
Reply
Old Aug 26, 2005 | 02:14 PM
  #17  
blkZ28spt's Avatar
11 Second Club
 
Joined: Feb 2003
Posts: 5,524
Likes: 1
From: The South
Default

You might just have to go to a stock cat-back with an electronic cutout.
Reply
Old Aug 26, 2005 | 02:35 PM
  #18  
MeentSS02's Avatar
Kleeborp the Moderator™
20 Year Member
iTrader: (11)
 
Joined: Mar 2004
Posts: 10,316
Likes: 6
From: Dayton, OH
Default

I'd actually vote for a twin-turbo Mercedes and be done with it...
Reply
Old Aug 26, 2005 | 02:48 PM
  #19  
WS6freak's Avatar
TECH Resident
iTrader: (3)
 
Joined: Sep 2004
Posts: 827
Likes: 0
From: Mill Creek, WA
Default

I know where he's coming from. It is LOUD when you floor it, even with cats. I am in the same situation - want proof? here it is - in person this is 10x louder.

As you're reading this, I am installing a XR-1 round on my I-pipe.

I'll post results later today.
Reply
Old Aug 26, 2005 | 03:49 PM
  #20  
98Z28MASS's Avatar
TECH Addict
iTrader: (6)
 
Joined: Jul 2004
Posts: 2,964
Likes: 1
From: Massachusetts
Default

yea if you want it quite then install another muffler, such as the borla bullet muffler, in the I-pipe. That should do it. Otherwise your out of luck if thats too loud because i dunno if you can install aditional cats over the stock 2 and that would be too much of a hassle. Good luck though and let us know what you choose and how it works out for ya!
Reply



All times are GMT -5. The time now is 05:18 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