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

High flo cats vs. no cats difference

Thread Tools
 
Search this Thread
 
Old Feb 21, 2007 | 11:47 AM
  #21  
chadnol10's Avatar
Thread Starter
TECH Apprentice
iTrader: (41)
 
Joined: Dec 2006
Posts: 354
Likes: 0
From: Lebanon, Pa
Default

quit talking about stuff and start your own thread to argue you guys **** me off. who knows where to get these cats? and will no cats make a huge difference?
Old Feb 21, 2007 | 11:51 AM
  #22  
Torque_Wrench's Avatar
TECH Addict
iTrader: (13)
 
Joined: Aug 2005
Posts: 2,267
Likes: 0
From: In the Sticks of Virginia
Default

Originally Posted by chadnol10
quit talking about stuff and start your own thread to argue you guys **** me off. who knows where to get these cats? and will no cats make a huge difference?
I use high flow Magnaflow cats and I purchase them from Summitt or Jegs (whichever offer the better price at the time)

And running no cats will make a huge diffrence in your loudness and rasp for sure. It's all depending on what you like.
Old Feb 21, 2007 | 11:52 AM
  #23  
Ace$nyper's Avatar
TECH Fanatic
iTrader: (8)
 
Joined: Oct 2005
Posts: 1,854
Likes: 0
From: Fort Washington Pa
Default

Originally Posted by Torque_Wrench
I'm not trying to call names or **** in anyone's face, but it seems everytime a person posts some advice stating their personal experiance on here, then some one like "Ace Snyper" or "Caviness" responds by calling you a liar or saying that your "stupid" or your ideas "suck". Why even post on LS1Tech if others are going to go right off and call you a liar? That's what I don't like about guys like that. Why not listen to others experiance and offer your insight into it instead of tryin to make someone look like a dick?
Because, I'm not the nicest person, I don't claim to be. I try I'm just not. We deal with these same kinds of posts 5986054860596804 times a day, people's tolarnce of beating the same issue over and over again goes down. That's what it really is.

Plus one of the companies I am re orginzing right now lost a ton thanks to gm investments, it's making my job alot harder and taking a shot at gm who is making my ball breaking side company *as if having a normal job and being a college student isn't enough* worse, makes my day suck a tiny bit less.
Old Feb 21, 2007 | 11:56 AM
  #24  
Torque_Wrench's Avatar
TECH Addict
iTrader: (13)
 
Joined: Aug 2005
Posts: 2,267
Likes: 0
From: In the Sticks of Virginia
Default

Originally Posted by Ace$nyper
Because, I'm not the nicest person, I don't claim to be. I try I'm just not. We deal with these same kinds of posts 5986054860596804 times a day, people's tolarnce of beating the same issue over and over again goes down. That's what it really is.

Plus one of the companies I am re orginzing right now lost a ton thanks to gm investments, it's making my job alot harder and taking a shot at gm who is making my ball breaking side company *as if having a normal job and being a college student isn't enough* worse, makes my day suck a tiny bit less.
Well friend consider this......if you post something I don't agree with, I'm not going to call you a bastard because of it. No matter what kind of day I'm having. And I don't care what GM's stock did for your company. They pay me well and that's all that matters to me. But in retrospect, I try to be a nice guy to any who ask me questions or my opinions about things.

10 years from now when your my age, your outlook on the world will have changed also.
Old Feb 21, 2007 | 11:58 AM
  #25  
chadnol10's Avatar
Thread Starter
TECH Apprentice
iTrader: (41)
 
Joined: Dec 2006
Posts: 354
Likes: 0
From: Lebanon, Pa
Default

my local shop says they distribute to everyone in the area and can get me high flo magnaflow cats stainless for $65 that sounds like a good deal he says they get a good deal because of how many they sell
Old Feb 21, 2007 | 11:59 AM
  #26  
gyrene2003's Avatar
12 Second Club
 
Joined: Jul 2005
Posts: 2,213
Likes: 1
From: Chesapeake va
Default

i by no means am any sort of expert so please dont flame, i just speak from persenal experiences and the information of a friend who is a member of his site and very noligable in the ways of the 4th gen f-body. It seems that when i had a cut-out on my car in my L/M, i was just a hair quicker on the top end, just noticable, but barely, while on the same token it seems i was also a bit slugish off the line. Now, this weekend im installing the below header setup, finally, and the good friend of mine, some of u may know him as "Raise" on this site, told me after i asked him about cats or no cats said that basically the same thing as when i had the cut-out would happen. i would loose that back-pressure, thier-by loosing afew pounds of tq., but i would gain just alittle in the hp department. But since im gone catted, cause i dont want to be deff, mainly, i wont loose any tq. now this was a gross simplification, he had said it much more expertlly, but i think u get the idea. Persenally, i think unless u plan on strictly racing the car at the track, i would go catted. the power differance is so minimal that it doesent seem worth the haed ache to me, but hey, to each his own.
Old Feb 21, 2007 | 12:00 PM
  #27  
Torque_Wrench's Avatar
TECH Addict
iTrader: (13)
 
Joined: Aug 2005
Posts: 2,267
Likes: 0
From: In the Sticks of Virginia
Default

Originally Posted by chadnol10
my local shop says they distribute to everyone in the area and can get me high flo magnaflow cats stainless for $65 that sounds like a good deal he says they get a good deal because of how many they sell
That's a good deal to me friend. That's a really decent price, I'd buy em'.
Old Feb 21, 2007 | 12:00 PM
  #28  
Ace$nyper's Avatar
TECH Fanatic
iTrader: (8)
 
Joined: Oct 2005
Posts: 1,854
Likes: 0
From: Fort Washington Pa
Default

Originally Posted by Torque_Wrench
Well friend consider this......if you post something I don't agree with, I'm not going to call you a bastard because of it. No matter what kind of day I'm having. And I don't care what GM's stock did for your company. They pay me well and that's all that matters to me. But in retrospect, I try to be a nice guy to any who ask me questions or my opinions about things.

10 years from now when your my age, your outlook on the world will have changed also.
I probbly won't live another 10 but thats another story, that I rather not get into.

either way... I think this has been more then enough derailed
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 Feb 21, 2007 | 12:01 PM
  #29  
Torque_Wrench's Avatar
TECH Addict
iTrader: (13)
 
Joined: Aug 2005
Posts: 2,267
Likes: 0
From: In the Sticks of Virginia
Default

Originally Posted by chadnol10
my local shop says they distribute to everyone in the area and can get me high flo magnaflow cats stainless for $65 that sounds like a good deal he says they get a good deal because of how many they sell
The GM cats on the LS based trucks are a really decent OEM cat, they flow really well.....so if I don't use that kind I'll only use Magnaflow otherwise.

Magnaflow is a good choice.
Old Feb 21, 2007 | 12:03 PM
  #30  
Torque_Wrench's Avatar
TECH Addict
iTrader: (13)
 
Joined: Aug 2005
Posts: 2,267
Likes: 0
From: In the Sticks of Virginia
Default

Originally Posted by gyrene2003
i by no means am any sort of expert so please dont flame, i just speak from persenal experiences and the information of a friend who is a member of his site and very noligable in the ways of the 4th gen f-body. It seems that when i had a cut-out on my car in my L/M, i was just a hair quicker on the top end, just noticable, but barely, while on the same token it seems i was also a bit slugish off the line. Now, this weekend im installing the below header setup, finally, and the good friend of mine, some of u may know him as "Raise" on this site, told me after i asked him about cats or no cats said that basically the same thing as when i had the cut-out would happen. i would loose that back-pressure, thier-by loosing afew pounds of tq., but i would gain just alittle in the hp department. But since im gone catted, cause i dont want to be deff, mainly, i wont loose any tq. now this was a gross simplification, he had said it much more expertlly, but i think u get the idea. Persenally, i think unless u plan on strictly racing the car at the track, i would go catted. the power differance is so minimal that it doesent seem worth the haed ache to me, but hey, to each his own.
I agree with you completely.
Old Feb 21, 2007 | 12:05 PM
  #31  
gyrene2003's Avatar
12 Second Club
 
Joined: Jul 2005
Posts: 2,213
Likes: 1
From: Chesapeake va
Default

just an opinion of one man.
Old Feb 21, 2007 | 12:07 PM
  #32  
Ace$nyper's Avatar
TECH Fanatic
iTrader: (8)
 
Joined: Oct 2005
Posts: 1,854
Likes: 0
From: Fort Washington Pa
Default

Originally Posted by gyrene2003
i by no means am any sort of expert so please dont flame, i just speak from persenal experiences and the information of a friend who is a member of his site and very noligable in the ways of the 4th gen f-body. It seems that when i had a cut-out on my car in my L/M, i was just a hair quicker on the top end, just noticable, but barely, while on the same token it seems i was also a bit slugish off the line. Now, this weekend im installing the below header setup, finally, and the good friend of mine, some of u may know him as "Raise" on this site, told me after i asked him about cats or no cats said that basically the same thing as when i had the cut-out would happen. i would loose that back-pressure, thier-by loosing afew pounds of tq., but i would gain just alittle in the hp department. But since im gone catted, cause i dont want to be deff, mainly, i wont loose any tq. now this was a gross simplification, he had said it much more expertlly, but i think u get the idea. Persenally, i think unless u plan on strictly racing the car at the track, i would go catted. the power differance is so minimal that it doesent seem worth the haed ache to me, but hey, to each his own.
Right on, only thing I'm wondering i:
I'm wondering if it has to do with the ecu tune, as some cars can be picky more so these obd2 cars.

ECU tuning is a hobby of mine, i've spend over a full weekend just geting a header right on a stock otherwise 92 civic hatch of a friends.

I really doubt a 2nd program would be warrented but I'm just now wondering as far as the computer goes how picky it would be to tune cut out open or closed..
Old Feb 21, 2007 | 12:09 PM
  #33  
chadnol10's Avatar
Thread Starter
TECH Apprentice
iTrader: (41)
 
Joined: Dec 2006
Posts: 354
Likes: 0
From: Lebanon, Pa
Default

Nobody Gives A **** Got It. Your Damn Backpressure Thing Is Over Start Your Own Thread!!!!!!!!!!!!!!!
Old Feb 21, 2007 | 12:10 PM
  #34  
chadnol10's Avatar
Thread Starter
TECH Apprentice
iTrader: (41)
 
Joined: Dec 2006
Posts: 354
Likes: 0
From: Lebanon, Pa
Default

sorry guys just way to many off topic convos on this thread everybody was being all huffy puffy so i'd rather stick to my question
Old Feb 21, 2007 | 12:16 PM
  #35  
Torque_Wrench's Avatar
TECH Addict
iTrader: (13)
 
Joined: Aug 2005
Posts: 2,267
Likes: 0
From: In the Sticks of Virginia
Default

Originally Posted by chadnol10
sorry guys just way to many off topic convos on this thread everybody was being all huffy puffy so i'd rather stick to my question
What else do you need to know friend? We all appologize for hijacking the thread. At least I do appologize.

Is there anything else you have in mind?
Old Feb 21, 2007 | 12:22 PM
  #36  
chadnol10's Avatar
Thread Starter
TECH Apprentice
iTrader: (41)
 
Joined: Dec 2006
Posts: 354
Likes: 0
From: Lebanon, Pa
Default

yeah anybody wanna buy high flo cats if they are only $65

sorry i just was stressing cause the shop wants to put these cats on this afternoon and i just found out i may be making a big mistake
Old Feb 21, 2007 | 12:23 PM
  #37  
Torque_Wrench's Avatar
TECH Addict
iTrader: (13)
 
Joined: Aug 2005
Posts: 2,267
Likes: 0
From: In the Sticks of Virginia
Default

Originally Posted by chadnol10
sorry guys just way to many off topic convos on this thread everybody was being all huffy puffy so i'd rather stick to my question
In my honest opinion, if you do headers and cats or headers and no cats, you will need to get a custome tune from the likes of Nelson Performance or PCM for Less or another reputable tuner and just ditch the Hypertech you got there.
Old Feb 21, 2007 | 12:38 PM
  #38  
caviness's Avatar
TECH Enthusiast
iTrader: (14)
 
Joined: Apr 2006
Posts: 698
Likes: 4
From: Liberty,NC
Default

Originally Posted by Torque_Wrench
In my honest opinion, if you do headers and cats or headers and no cats, you will need to get a custome tune from the likes of Nelson Performance or PCM for Less or another reputable tuner and just ditch the Hypertech you got there.

i agree with this,Torque wrench i was not tryng to meke you mad,i did lots of reasurch on exhaust and for max effort no backpressure was needed,sorry to upset anyone.
Old Feb 21, 2007 | 12:39 PM
  #39  
Ragtop 99's Avatar
TECH Senior Member
iTrader: (7)
 
Joined: Nov 2001
Posts: 9,491
Likes: 1
From: Bethesda, MD
Default

several sponsors sell the cats. 3" metal ones will not have much impact on flow or sound.
Old Feb 21, 2007 | 12:40 PM
  #40  
NoGamesLS1's Avatar
TECH Resident
iTrader: (16)
 
Joined: Jul 2005
Posts: 800
Likes: 0
Default

Originally Posted by chadnol10
Nobody Gives A **** Got It. Your Damn Backpressure Thing Is Over Start Your Own Thread!!!!!!!!!!!!!!!
^^^ :sand in vagina:



All times are GMT -5. The time now is 06:51 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