best cat back sys [Archive] - LS1 Performance Information

01ls1ws6

10-22-2006, 01:12 PM

i have an 01 trans am and i am thinking bout putting a cat back on it. what is the best cat back for the money and if any what would the hp gains be.

Kyle C

10-22-2006, 04:19 PM

My vote is for the Hooker catback. Dyno results in the sig.

jerry trans am

10-22-2006, 04:22 PM

Loud Mouth .

tbaum

10-22-2006, 05:03 PM

I gotta go with Hooker as well. I have a complete Hooker setup. They are some of the oldest in the biz. Great sound but not overpowering. I used to run a cutout full time but with the new job I am constantlyh on the interstate and could never hear my cell ring. Everyone has their preferences but "I Love My Hooker"

01ls1ws6

10-25-2006, 09:07 PM

how loud exactly is the loud mouth sys and whats the diff. between the original loud mouth and the loud mouth 2

Zboner

10-25-2006, 09:08 PM

borla

01ls1ws6

10-25-2006, 09:19 PM

i like the sound of borla but is it really worth the money

anniversary30

10-26-2006, 03:07 PM

I have a borla but it was on the car when I bought it.After putting on the Y pipe and long tubes it sounds great.That plus the dyno tune got me 345 to the wheels.

mrr23

10-27-2006, 04:10 PM

i run the bassani tru-duals on both cars.

Thorazine Shuffle

10-27-2006, 04:25 PM

i run the bassani tru-duals on both cars.

Do you have a pic of your duals???

zero_proto

10-27-2006, 04:32 PM

i like my borla. I love the sound.

edbird

10-27-2006, 05:51 PM

Man,don't get a Hooker! It ruined my gas milage!
The sound is so enjoyable and amazing, every time I get in the car all I want to do is WOT!!!LOL If you don't get on it, it sounds like stock and is not objectionable .I don't think you can beat the system for the money!

Mr. Luos

10-27-2006, 05:57 PM

I swear by Magnaflow. Great quieter tone at idle, then mean when WOT.
And it is as good as any performance wise.

Stay away from the SLP Loudmouth if you plan on upgrading down the road.
I made the mistake myself years ago.
Sounded good until I modded the exhaust further.
Plus, SLP has terrible customer service.

Good luck!!

Stricken1

10-28-2006, 04:44 PM

Loudmouth 2 with ORY and get rid of the cats and get o2 sims. Trust me on this one it sounds badass!!!

mrr23

10-28-2006, 04:49 PM

Do you have a pic of your duals???

black car
http://www.stealthram.com/2000pontiacformula.html

white car
http://www.stealthram.com/1999pontiacformula.html

98LSGUN

10-28-2006, 05:19 PM

how loud exactly is the loud mouth sys and whats the diff. between the original loud mouth and the loud mouth 2

My vote is L/M. The don't call it loud for nothing, there is a drone at 2k rpm but there's nothing like it at WOT. I get more compliments from just the sound of my car than anything else...

01ls1ws6

10-28-2006, 05:24 PM

what else do u have done to your car 98lsgun

rajiv1998

10-28-2006, 07:01 PM

the loud mouth is pretty loud. When i told people i dont have headers, they didnt believe me until they looked underneath my car.

feet739

10-29-2006, 10:58 AM

i have an 01 trans am and i am thinking bout putting a cat back on it. what is the best cat back for the money and if any what would the hp gains be.I also have Borla and it sounds great and not overly loud.

Armor

10-29-2006, 08:33 PM

Not sure on the LS1, but I have an SLP Loudmouth on my '97 LT1 T/A...I love it...noticeable performance gain, sounds great...not as "loud" as you may expect, at normal driving RPM's and on the highway, just a nice rumble, can easily have a conversation in the car...but at WOT, it screams....LOL

Armor

KyleLs1

10-29-2006, 09:25 PM

B&B - 17hp gain (supposedly) and it looks and sounds badass

Bandit1

10-30-2006, 05:37 PM

2002 TA the GMMG is great noticable gains too sounds great check out ls1sounds.com

98LSGUN

10-30-2006, 07:08 PM

what else do u have done to your car 98lsgun

Sorry for the slow response, haven't been on in a couple of days.

Eibach sport springs
Bilstein performance shocks/struts
BMR SFC's
L/M Cat Back
LS1 air lid
Free air mods
Granatelli MAF
SLP smooth bellows
Weight reduction
RP all around

That's about it, I was toying with the idea of selling it but I think I'll keep it and throw a nice H/C package at it in the summer.

Mr. Luos

10-30-2006, 07:17 PM

That's about it, I was toying with the idea of selling it but I think I'll keep it and throw a nice H/C package at it in the summer.
That will do it in.
You will start to hate your loudmouth once cammed. :yup:

I couldn't take it anymore and replaced it.

KageSS

10-30-2006, 07:26 PM

how loud exactly is the loud mouth sys and whats the diff. between the original loud mouth and the loud mouth 2

Original Loud Mouth Shotgun is louder, do to using a resonator only.
Loud Mouth II uses muffler, i think.

AKIRA

10-30-2006, 07:39 PM

I am surprised, but PLEASED that Corsa isnt a crowd favorite so far in this thread. Back when I had all my posts, everyone swore by it being "worth the price." I cant see it. Along with that, I cant see buying a borla nor a B&B.

If all catbacks give the same performance, then youre just buying the type of metal and look.

I am biased since I heard the borla and hated it. Sounded like the banging of pots and pans. The B&B is less popular, but it looks as good as the corsa and is cheaper.

My vote goes for Magnaflow or Hooker..and if you want better tips you can buy the Corsa's and still save money...even though their tips are expensive too.

Zboner

10-30-2006, 07:47 PM

I also have Borla and it sounds great and not overly loud.

are you sure about not being loud?? lol

mines on the right

http://www.youtube.com/watch?v=uAJqkpAyF1U

01ls1ws6

10-31-2006, 05:59 PM

how was the installation on the loud mouth, pretty simple ? can you adjust the tips

Jims455

10-31-2006, 06:05 PM

white car
http://www.stealthram.com/1999pontiacformula.html
music is teh ghey
:Puke:

screamin chicken

11-04-2006, 05:16 AM

I have a 2000 WS6 with a Cam, Headers, ORY.I had a Borla and with my mods it was way to raspy, then got a LM and it was awesome but it was just to LOUD, I now have a 4' Mufflex with a Spin Tech muffler and absolutley love this system, Best one out there in my opinoin.I am thinking of selling it just to down size, 4" is a little much for me........

9T8W66

11-04-2006, 07:43 AM

:notworthy: Mufflex

Danger731

11-04-2006, 09:11 AM

how was the installation on the loud mouth, pretty simple ? can you adjust the tips

I installed it myself on a lift in about a hour. Then I paid a shop 20 bucks to tack weld the seams for security.

Danger731

11-04-2006, 09:12 AM

I have the dual dual tips chrome with SLP logo. What would you adjust ?

01ls1ws6

11-04-2006, 05:09 PM

how far the tips stick out or how far they hang down . do u have any pics of your duals danger731

berniews6

11-04-2006, 05:49 PM

When I was looking for exhaust I wanted to compare Borla and Loudmouth next to each other(a friend had Borla and someone on here met us in a nearby town) well I chose the Loudmouth and love it(I had it before my 2002Firehawk came in to the dealer) I then ordered it for my 1996 Formula WS6. Then I bought my wife a 1998 Formula and ordered it for that also. I installed it on all cars and it was pretty easy(I didnt cut it off of the 02 and 96) It is real easy if you cut your old exhaust off.

My vote goes to the LOUDMOUTH!!!! I think it could be louder tho.

01ls1ws6

11-05-2006, 03:07 PM

should i go with the original loud mouth or loud mouth 2

Pewter02Formula

11-06-2006, 07:17 AM

Mine's got a Magnaflow catback. I love the sound. Makes a nice growl when you start the car... stays quiet and unassuming when you're idle, but if you lay into it, it gets nice and loud. It's great for highway driving because you don't hear the constant drone. The pipes stay nice and shiny if you keep 'em clean. No fancy tips, just a pair of big round pipes that look like they're gonna launch a couple SAMs. :D

djvaly

11-06-2006, 01:38 PM

Corsa catback is pricey $850 but it's looks and sound is nice. mellow at low RPM and mean at high RPM.. it looks nice, check out my profile pic. the gain is about 10rwhp

01ls1ws6

11-06-2006, 08:42 PM

Im Leaning Toward Loud Mouth But I Dont Know If I Should Get The Original Loud Mouth Mouth Or The Loud Mouth 2

Spitfire

11-07-2006, 08:09 AM

MAGNAFLOW!!!!
It sounds nice around town, but when you open it up inside a tunnel with the windows down and the tops off, it absolutely screams. Sounds like you're right inside a Nascar race....

4get gto

11-07-2006, 03:48 PM

What ??? Nobody like the sound of FlowMaster ??????:toetap:

Tyler_LS1

11-07-2006, 03:52 PM

MAGNAFLOW!!!!
It sounds nice around town, but when you open it up inside a tunnel with the windows down and the tops off, it absolutely screams. Sounds like you're right inside a Nascar race....

:yup::yup:
cheaper, and it performs just as good as the more expensive ones:)

01ls1ws6

11-07-2006, 07:17 PM

but is magnaflow loud?

rajiv1998

11-08-2006, 08:22 AM

What ??? Nobody like the sound of FlowMaster ??????:toetap:

they flow like shit

4get gto

11-08-2006, 06:05 PM

they flow like shit

They may.......But they do sound good. :yup:

Tyler_LS1

11-08-2006, 10:10 PM

but is magnaflow loud?

Its got a nice rumble at idle and Screams at WOT.

with LT headers is sounds even better:).

it has the strait through design, just with more packing in a bigger case.

http://i64.photobucket.com/albums/h187/corvettefan06/Cutout.jpg

http://i64.photobucket.com/albums/h187/corvettefan06/magnaflow_inside.jpg

http://i64.photobucket.com/albums/h187/corvettefan06/Cutout-2.jpg