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

Forget the mufflers!!!

Thread Tools
 
Search this Thread
 
Old Jun 18, 2002 | 10:35 PM
  #1  
TravWS6's Avatar
Thread Starter
TECH Enthusiast
 
Joined: Apr 2002
Posts: 533
Likes: 0
From: Canada
Default Forget the mufflers!!!

ok if i were to do true duals before the axle but didn't wana run mufflers i no if would be loud! but what if i put Cats in??? and no mufflers!! it would sounds good and be legal em i right??? just gota make sure there small cats for ground clearence. I tryed this on my X 1985 Z28 5 litre.. just took the pipe off after the cat like a cheap cut out.. it sounded better then any flowmaster but was a little louder to.. but thats how i like my cars.. but on LS1 it wouldn't be much louder right? Thanx for any help.
Reply
Old Jun 18, 2002 | 11:04 PM
  #2  
Sears's Avatar
!Dial-up Director
 
Joined: Nov 2001
Posts: 3,100
Likes: 1
From: Louisiana
Default Re: Forget the mufflers!!!

Why use cats? Why not some sort of bullet muffler? Yes it will be LOUD

Justin
Reply
Old Jun 18, 2002 | 11:43 PM
  #3  
TravWS6's Avatar
Thread Starter
TECH Enthusiast
 
Joined: Apr 2002
Posts: 533
Likes: 0
From: Canada
Default Re: Forget the mufflers!!!

Well because we have emission laws out here.. so u need them for air care tests..
Reply
Old Jun 18, 2002 | 11:55 PM
  #4  
Vents's Avatar
TECH Addict
iTrader: (9)
 
Joined: Apr 2002
Posts: 2,085
Likes: 0
From: Texas, it's like your state, but better.
Default Re: Forget the mufflers!!!

well, i run the cutout open all the time and still have cats. sounds pretty good imo. not too loud but what about just 2 bullets in the y pipe and a single out the back w/o a muffler? just a thought.
Reply
Old Jun 18, 2002 | 11:58 PM
  #5  
Pro Stock John's Avatar
LS1Tech Co-Founder
20 Year Member
Community Influencer
iTrader: (34)
 
Joined: Nov 2001
Posts: 45,329
Likes: 1,767
From: Chicago, IL
Default Re: Forget the mufflers!!!

Undo your catback and see how you like it. Easy test.

Duals with bullets and not cats will be loud.

I run a 422ci, but I have 3" duals, oval pipe, 2.5" balance tube 18" from the collectors, going into Borla XR1 sportsman muffers (12") into dumps at the axle.

It's loud but not sick loud like my bullet mufflers were.
Reply
Old Jun 19, 2002 | 12:14 AM
  #6  
RTCamaroSS's Avatar
TECH Resident
 
Joined: May 2002
Posts: 829
Likes: 0
From: Fremont, CA
Default Re: Forget the mufflers!!!

Im running Hooker shorties, with cats, and no muffler, but pipes still exit in the same place.. Basically just eliminated the muffler.. Sounds absolutely awesome at WOT.. idle is quiet... which is perfect when you pass cops, just push in the clutch, and they would never know. I love my exhaust.. it used to pop on decel before the headers, but now its not bad at all...
Reply
Old Jun 19, 2002 | 09:15 AM
  #7  
wizkid's Avatar
Install Director
iTrader: (3)
 
Joined: Nov 2001
Posts: 1,002
Likes: 0
Default Re: Forget the mufflers!!!

I have heard true duals with bullet mufflers and I wouldn't consider it too loud. It sounded great to me!!

Eric
Reply
Old Jun 19, 2002 | 09:29 AM
  #8  
99RamAirTA's Avatar
Launching!
 
Joined: Apr 2002
Posts: 240
Likes: 0
From: chicago
Default Re: Forget the mufflers!!!

I am running a orp with no muffler myself and it is godawfully loud. I do get some nasty looks from some older people but just about all car nuts give me the thumbs up. When emisions testing comes I plan on getting a y pipe with cats but I don't plan on passing anyway. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
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 Jun 19, 2002 | 11:42 AM
  #9  
SSleeper's Avatar
Staging Lane
 
Joined: Dec 2001
Posts: 84
Likes: 0
From: Pearland, Texas
Default Re: Forget the mufflers!!!

What are you running in place of the muffler? Did you buy it or make it?
Reply
Old Jun 19, 2002 | 01:15 PM
  #10  
RTCamaroSS's Avatar
TECH Resident
 
Joined: May 2002
Posts: 829
Likes: 0
From: Fremont, CA
Default Re: Forget the mufflers!!!

I can almost assure you 100% you wont pass an emissions test with the cat that far back. Its that reason that the SLP LT's are not smog legal, because the cats are not in the stock location. Me being a smog tech. i know this very well. Also, the cat being that far back, the brick inside wouldnt get hot enough to convert all those emissions, and you'd fail on tailpipe anyway. But you would fail a visual first. Best to keep the cats in the stock y-pipe.. I like my setup.. sounds loud as hell. Hooker Shorties, stock cats in y-pipe, no muffler... I checks my emmisions the other day on the machine, and im doin awesome.. hard to beleive with the tuning, and intake and exhaust mods...
Reply
Old Jun 19, 2002 | 02:48 PM
  #11  
Black Sunshine/ 00SS's Avatar
TECH Addict
iTrader: (1)
 
Joined: Nov 2001
Posts: 2,161
Likes: 0
From: Michigan
Default Re: Forget the mufflers!!!

It will be extremely loud with the bullets, but might be just right with cats & bullets. If you want louder, then put cutouts on there, so you can have it loud when you want, & not when you dont.. Good luck.
Reply
Old Jun 19, 2002 | 11:20 PM
  #12  
TravWS6's Avatar
Thread Starter
TECH Enthusiast
 
Joined: Apr 2002
Posts: 533
Likes: 0
From: Canada
Default Re: Forget the mufflers!!!

Thanx RTcamaroSS veery good points there.. so u got stock cats on your headers and no muffler? must sounds good! but what if i wana run long tubes.. which i do!.. how would i get the cats on there?? and do u think they'll hit the ground on speed bumps.. i em lowered a bit to.. so i might just get screwed either way
Reply
Old Jun 20, 2002 | 12:22 AM
  #13  
TravWS6's Avatar
Thread Starter
TECH Enthusiast
 
Joined: Apr 2002
Posts: 533
Likes: 0
From: Canada
Default Re: Forget the mufflers!!!

Well like i said i don't wana run bullets because then i'll have cats to..thats just to quiet..

But ya i think the idea of poping off my cat back would be a good test. Right now i don't have headers.. but thats why im doing this post so when i get headers i'll have a set up ready.
Heres my idea! i thought of it yesterday.. tell me what u think >>>>> hooker headers into ORY back to my borla adjustable, then on the borla i'll cut out the muffler and put a cat there!! then when emissions comes i put the full block off plate so i don't pollute but when im outa there i run open plate again and its loud ***!
Hows that sound? thanx guys
Reply
Old Jun 20, 2002 | 12:24 AM
  #14  
TravWS6's Avatar
Thread Starter
TECH Enthusiast
 
Joined: Apr 2002
Posts: 533
Likes: 0
From: Canada
Default Re: Forget the mufflers!!!

The reason why i want the cat back there is because i heard its kinda hard to put a cat in the Y pipe properly.. and ground clearence problems to. this is just my idea..
Reply
Old Jun 20, 2002 | 03:02 PM
  #15  
TravWS6's Avatar
Thread Starter
TECH Enthusiast
 
Joined: Apr 2002
Posts: 533
Likes: 0
From: Canada
Default Re: Forget the mufflers!!!

Well i took my cats out today.. cost me $5 for the slurpees i baught the guys! haha it sounds awsome.. right now i have the closed plate in the borla.. so i can just imagine how loud and good it would sounds with it out.. gona try that soon! now i no what everyone means about the rasp.. i have very little at just under 2000RPM.. only on back pressure tho.. when i let off the gas.. but i don't think i'll need headers for a while now.. well i would for more power.. but im satisfied with the sound for now.
Reply




All times are GMT -5. The time now is 10:03 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