Flowmaster outlaw + long tube headers too loud? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

SynergyGreenSS · 02-02-2016, 12:58 PM

I have the flow master outlaw cat-back exhaust on my Camaro and its already pretty loud. I don't think there's such thing as too loud when it comes to muscle cars but I've been told that if I add long tube headers to my car it will make it "obnoxiously loud". Anyone have a similar set-up that could share some insight? Thanks

Homeless Man · 02-02-2016, 01:58 PM

I would like to know also. Is outlaw louder than muffler delete on LS3?

cj04 · 02-02-2016, 02:41 PM

I have 3 inch cat back with long tubes and cat delete. I think I have the American thunder, but no, I don't think it's too loud.

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Dmpsix · 02-02-2016, 02:52 PM

Quote:

Originally Posted by Homeless Man

I would like to know also. Is outlaw louder than muffler delete on LS3?

There's no way there's anything louder (decibel wise) than a muffler delete ... of course if we're talking about cutouts
http://www.quicktimeperformance.com/QTEC/index.php

That's an entirely different animal... but as far as pipes go.. nah straight pipes are just that... straight pipes.

I have this setup, LT Headers with straight pipes, no resonator... yeah it's pretty loud when you get on it, it's eh... if it's at an idle and it's all warmed up.

But I've learned with having this setup, it's not all about the decibels, because I'm sometimes annoyed with this set up and how raspy it sounds, it's very untamed and pretty wild, you can tell (at least I can) that this isn't an exhaust system that is refined and toned.

Homeless Man · 02-02-2016, 02:56 PM

Quote:

Originally Posted by cj04

I have 3 inch cat back with long tubes and cat delete. I think I have the American thunder, but no, I don't think it's too loud.

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There's a big difference between outlaw and American thunder...

And yea Dmpsix I have muffler delete with headers also but I'm thinking I want outlaws 3inch catback but I don't want it to be louder than my muffler delete (small LS3 resonators are still there)

SynergyGreenSS · 02-02-2016, 02:59 PM

So let's say my cat-back outlaw is a 5 on a scale of 1-10. 10 being twice as loud as it is currently. What do you think long tube headers and the outlaw would put it at?

Homeless Man · 02-02-2016, 03:12 PM

Quote:

Originally Posted by SynergyGreenSS

So let's say my cat-back outlaw is a 5 on a scale of 1-10. 10 being twice as loud as it is currently. What do you think long tube headers and the outlaw would put it at?

8.5. I made this judgement from my experience muffler delete stock manifolds then I upgraded to headers. The huge diffence will be when u hit the gas.

kenshin98 · 02-02-2016, 03:17 PM

Hey man, I have long tube headers cat deletes and stainless works retro chambered 3 inch exhaust and it's not bad at all. I can listen to the radio and all but you can def. Hear it. Not in a negative obnoxious way. I think it will sound good.

avido · 02-02-2016, 05:41 PM

Quote:

Originally Posted by SynergyGreenSS

So let's say my cat-back outlaw is a 5 on a scale of 1-10. 10 being twice as loud as it is currently. What do you think long tube headers and the outlaw would put it at?

Louder doesn't mean obnoxious . Everything depends on the frequencies. I have American thunder cutback with long tube and high flow cat. Everything with night fury cam. Even though mine is louder in terms of decibel the outlaw which il a friend's car with longtube and no cat ( with stock cam) is more noisy

cj04 · 02-02-2016, 07:16 PM

Quote:

Originally Posted by avido

Louder doesn't mean obnoxious . Everything depends on the frequencies. I have American thunder cutback with long tube and high flow cat. Everything with night fury cam. Even though mine is louder in terms of decibel the outlaw which il a friend's car with longtube and no cat ( with stock cam) is more noisy

The amount of noise is more from the difference in cat vs cat delete. Which will also effect the volume. Hard to judge with the difference in cats and cams

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Airbornesldr12 · 02-02-2016, 07:45 PM

I was thinking about doing long tubes catless with cutouts with stock muffler

Eric14SS · 02-02-2016, 09:48 PM

Long tubes and stock mufflers sound good. I have long tubes no cats with npp exhaust. It sounded good but a little louder than I wanted. Now it's crazy loud after I got a cam.

2010reddevil · 02-03-2016, 11:12 AM

The stock LS3 mufflers sound decent, but they're very raspy and "poppy" sounding. The Outlaw a/b I had on mine was actually louder with stock manifolds and no cats vs LT's and no cats. I attribute this to the headers delivering the firing pulses to the collector in an equal time vs the manifold. It was a great sound though. If I ever get another, I'll be doing the same setup.

02-02-2016, 12:58 PM	#1
SynergyGreenSS Drives: 2011 2SS Join Date: Mar 2015 Location: Arlington, Texas Posts: 1,333	Flowmaster outlaw + long tube headers too loud? I have the flow master outlaw cat-back exhaust on my Camaro and its already pretty loud. I don't think there's such thing as too loud when it comes to muscle cars but I've been told that if I add long tube headers to my car it will make it "obnoxiously loud". Anyone have a similar set-up that could share some insight? Thanks

02-02-2016, 01:58 PM	#2
Homeless Man Homeless Life Chose Me Drives: LS3 (sold 4/21) Join Date: Nov 2014 Location: Streets of Philly Posts: 3,650	I would like to know also. Is outlaw louder than muffler delete on LS3? __________________ Pity a man in familiar places, who yet feels like a stranger.

02-02-2016, 03:17 PM	#8
kenshin98 Drives: 2014 chevy camaro 1ss rs auto Join Date: Oct 2013 Location: miami florida Posts: 82	So retro chambered exhaust and headers. Hey man, I have long tube headers cat deletes and stainless works retro chambered 3 inch exhaust and it's not bad at all. I can listen to the radio and all but you can def. Hear it. Not in a negative obnoxious way. I think it will sound good.

02-03-2016, 11:12 AM	#13
2010reddevil Drives: 2010 Camaro 2SS Victory Red 6M Join Date: Apr 2015 Location: Gulf Coast, TX Posts: 1,424	The stock LS3 mufflers sound decent, but they're very raspy and "poppy" sounding. The Outlaw a/b I had on mine was actually louder with stock manifolds and no cats vs LT's and no cats. I attribute this to the headers delivering the firing pulses to the collector in an equal time vs the manifold. It was a great sound though. If I ever get another, I'll be doing the same setup. __________________ 2011 2SS 6A Red Jewel Metallic, Vararam Tune CAI, Magnaflow 3" Competition c/b, Speed Engineering 1-7/8 LT's, Circle D 5C, M/T 275/40R20 S/S, HPTuners tune by Ryan@GPI 12.3 @ 112 ACM as of 12/22/19 Gone on 12/28/19 R I P 2010 2SS 6M Victory Red/Black (old ride) CAI intake, Speed Engineering 1 7/8" LT's, X4 base tune, Flowmaster Outlaw axle-back. 12.6 @ 115 SAR as of 9/19/15 Gone but never forgotten.

02-02-2016, 02:41 PM	#3
cj04 Drives: 2010 2ss/rs Join Date: Mar 2014 Location: United States Posts: 310 View My Garage	I have 3 inch cat back with long tubes and cat delete. I think I have the American thunder, but no, I don't think it's too loud. Sent from my Nexus 6 using Tapatalk

02-02-2016, 02:59 PM	#6
SynergyGreenSS Drives: 2011 2SS Join Date: Mar 2015 Location: Arlington, Texas Posts: 1,333	So let's say my cat-back outlaw is a 5 on a scale of 1-10. 10 being twice as loud as it is currently. What do you think long tube headers and the outlaw would put it at?

02-02-2016, 07:45 PM	#11
Airbornesldr12 RunEmIfYouGotEm Drives: She wears midnight blue ls3 m6 Join Date: Jan 2016 Location: Chicago Posts: 84	I was thinking about doing long tubes catless with cutouts with stock muffler

02-02-2016, 09:48 PM	#12
Eric14SS Drives: 14 2SS RS and 16 Silverado LTZ Z71 Join Date: May 2014 Location: New Lenox, IL Posts: 68	Long tubes and stock mufflers sound good. I have long tubes no cats with npp exhaust. It sounded good but a little louder than I wanted. Now it's crazy loud after I got a cam.