Noise Level With Headers - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

rpepka · 11-02-2012, 05:49 AM

Considering Headers but cannot find a clip (other then a manufactures) of the inside cabin noise level.

Looking for some honest opinions about the increased noise level inside with headers, high flow cats hooking into stock exhaust.

sportyb24 · 11-02-2012, 05:53 AM

Won't really be able to tell much diferents on the inside. Although on the outside you'll be able to tell a tad bit..

Happy_Dan · 11-02-2012, 06:43 AM

I could try and get a sound clip from mine. Inside it is only slightly louder than stock when driving around but pretty loud when you got WOT, which is exactly what I wanted.

Outside, I am told it sounds like NASCAR when I passed my friend at WOT on the highway.

I have SLP Long tubes with high flow cats and then the rest is all stock.

ZL1 TIBS · 11-02-2012, 07:19 AM

Rpeka, I haven't done this on the Camaro, but I had long tubes and no cats on my 2005 GTO. I have found that the cars with the mufflers at the rear do not have that much of an interior sound difference when installing longtubes. My GTO was very loud on the outside, but inside the car it was very tolerable. I took my wife on a 5 hour drive in the GTO and she didn't complain inthe least about the noise. In constrast, my 68 Camaro and my old 1987 Aerocoupe Monte Carlo with the mufflers under the rear floor pan were much louder inside the car. It may also have something to do with how well they insulate the cars these days.
Bottom Line: Don't let the worry of increased noise keep you from doing this.

2012ZL1 · 11-02-2012, 11:18 AM

Not bad on the inside...loud as a jet plane taking off on the outside.

rpepka · 11-02-2012, 01:49 PM

Quote:

Originally Posted by Happy_Dan

I could try and get a sound clip from mine. Inside it is only slightly louder than stock when driving around but pretty loud when you got WOT, which is exactly what I wanted.

Outside, I am told it sounds like NASCAR when I passed my friend at WOT on the highway.

I have SLP Long tubes with high flow cats and then the rest is all stock.

Thank You

1st Gen Forever · 11-02-2012, 04:50 PM

Like everyone has stated... Not so bad on the inside but outside it's wicked when the muffler butterflies open up at WOT. I have some videos of the interior shared on here shot with a gopro so the audio isn't accurate of course but you can see we're talking in the car as normal. I even use my bluetooth with my phone on the freeway. Only an issue if I step into WOT.

JANNETTYRACING · 11-02-2012, 06:27 PM

Quote:

Originally Posted by rpepka

Considering Headers but cannot find a clip (other then a manufactures) of the inside cabin noise level.

Looking for some honest opinions about the increased noise level inside with headers, high flow cats hooking into stock exhaust.

Probably the Best all around combo is just this, with a set of Dynatechs you will be very pleased with the results.

Ted.

rpepka · 11-02-2012, 08:33 PM

Quote:

Originally Posted by JANNETTYRACING

Probably the Best all around combo is just this, with a set of Dynatechs you will be very pleased with the results.

Ted.

Hi Ted,

I was looking at the Stainless steel works. Why do you prefer the Dynatechs?

1 7/8---- 2" ----- 2 1/2? What is the difference. I would guess low end torque? I have an automatic.

justindewoody · 11-02-2012, 08:43 PM

If I get a set of 2" Dynatechs and high flow cats (keeping the stock mufflers), do I need a new tune?

billjw · 11-02-2012, 09:11 PM

So maybe this the wrong place to ask this and I am not trying to jack this thread but....

I am wondering what maker of headers you went with and why you chose them.

armysig · 11-02-2012, 09:18 PM

Quote:

Originally Posted by justindewoody

If I get a set of 2" Dynatechs and high flow cats (keeping the stock mufflers), do I need a new tune?

Yes because you're increasing the amount of air flow exiting the engine.

Happy_Dan · 11-03-2012, 06:24 AM

The reason I picked SLP is two fold. I know the work that SLP did on the 4th Gen Camaro SS and the Firehawk. The family along with GM kept the Camaro alive a couple of more years and they are a solid family business.

I was lucky enough to visit the plant and watched them build some headers. They have racks of steel made in USA. They take those long lengths of pipe and cut them and bend them to shape for each cylinder and put them in a bin. Then they take the 8 bins and weld the pipes together. They ceramic coat them, bake them and polish them all right there in Toms River NJ, USA. They use all quality, made in USA material, assemble everything in the USA with USA workers.

I love mine! Sound great, look great and made in USA.

I am not paid to do SLP commercials, LOL. That is just me and 12 years of experience with the Hamburger family and company.

v6sonoma · 11-03-2012, 07:17 AM

Quote:

Originally Posted by justindewoody

If I get a set of 2" Dynatechs and high flow cats (keeping the stock mufflers), do I need a new tune?

Yes because the longtubes will relocate the cats further back which causes them to heat up slower which will cause a check engine light to appear. Also to get max performance a tune is a must.

11-02-2012, 05:49 AM	#1
rpepka Drives: 2013 ZL1 # 2195 Join Date: Jun 2009 Location: Bradenton, FL Posts: 965	Noise Level With Headers Considering Headers but cannot find a clip (other then a manufactures) of the inside cabin noise level. Looking for some honest opinions about the increased noise level inside with headers, high flow cats hooking into stock exhaust. __________________ http://www.sarasotahomestore.com/

11-02-2012, 05:53 AM	#2
sportyb24 Romanian Outlaw Drives: 13 ZL1 , 14 Silverado Crew Cab Join Date: Apr 2010 Location: Texas Baby Posts: 1,082	Won't really be able to tell much diferents on the inside. Although on the outside you'll be able to tell a tad bit.. __________________ [/SIGPIC]2013 Camaro ZL1 M6

11-02-2012, 11:18 AM	#5
2012ZL1 CaRaHoLiC Drives: '12 ZL1,67 Cam,68 Biscayne 427 4 sp Join Date: Aug 2011 Location: B.C. Canada Posts: 1,701	Not bad on the inside...loud as a jet plane taking off on the outside. __________________ 2012 ZL1 2.55 upper, 10" lower pullies, Innovators west billet hub and sfi balancer, solid blower drive isolator, 50 mm idler kit, full length S/S headers no cats, comp cams custom grind cam, comp roller rocker trunion kit, comp push rods,dual valve springs retainers and locks, Injector dynamics ID850 inectors, Rotofab ZL1 cold air kit, Lingenfelter 160 thermostat, Rotofab intercooler reservoir, stock plugs, LS7 90mm throttle body, GTO clutch reservoir mod, my own custom catch can, Tuning by Jannetty, install by me.

11-02-2012, 08:43 PM	#10
justindewoody Drives: 2013 Camaro ZL1 Join Date: Sep 2012 Location: Spring, TX Posts: 136	If I get a set of 2" Dynatechs and high flow cats (keeping the stock mufflers), do I need a new tune? __________________ 2013 Camaro ZL1 Silver Ice #3187 TPW 10/22 1100 Preliminary Order Accepted 9/26/2012 1102 Preliminary Order Added Thru Web 9/26/2012 2000 Accepted by GM 10/01/2012 2500 Preferenced 10/02/2012 3000 Accepted by Production Control 10/02/2012 3100 Available to Sequence 10/11/2012 3300 Scheduled for Production 10/11/2012 3400 Broadcast 10/18/2012 3800 Produced 10/22/2012 4000 Available to Ship 10/23/2012 4150 Original Invoice 10/23/2012 4B00 Bayed 10/23/2012 4200 Shipped 10/26/2012 4800 Rail Ramp Unload 11/02/2012 5000/6000 Delivered 11/05/2012

11-02-2012, 06:43 AM	#3
Happy_Dan Happy_Dan Drives: 2012 IOM Camaro ZL1 #569 Join Date: Dec 2011 Location: New Boston, NH Posts: 2,239	I could try and get a sound clip from mine. Inside it is only slightly louder than stock when driving around but pretty loud when you got WOT, which is exactly what I wanted. Outside, I am told it sounds like NASCAR when I passed my friend at WOT on the highway. I have SLP Long tubes with high flow cats and then the rest is all stock.

11-02-2012, 07:19 AM	#4
ZL1 TIBS Drives: 1968 Camaro, 2012 ZL1 Join Date: Nov 2011 Location: Aston, PA Posts: 398	Rpeka, I haven't done this on the Camaro, but I had long tubes and no cats on my 2005 GTO. I have found that the cars with the mufflers at the rear do not have that much of an interior sound difference when installing longtubes. My GTO was very loud on the outside, but inside the car it was very tolerable. I took my wife on a 5 hour drive in the GTO and she didn't complain inthe least about the noise. In constrast, my 68 Camaro and my old 1987 Aerocoupe Monte Carlo with the mufflers under the rear floor pan were much louder inside the car. It may also have something to do with how well they insulate the cars these days. Bottom Line: Don't let the worry of increased noise keep you from doing this.

11-02-2012, 04:50 PM	#7
1st Gen Forever ZL1 #140 Drives: Camaros: 68 SS, 10 2SS/RS, 12 ZL1 Join Date: Mar 2008 Location: Arizona Posts: 594	Like everyone has stated... Not so bad on the inside but outside it's wicked when the muffler butterflies open up at WOT. I have some videos of the interior shared on here shot with a gopro so the audio isn't accurate of course but you can see we're talking in the car as normal. I even use my bluetooth with my phone on the freeway. Only an issue if I step into WOT.

11-02-2012, 09:11 PM	#11
billjw Drives: 2013 ZL1 Black Join Date: Aug 2011 Location: New Jersey Posts: 85	So maybe this the wrong place to ask this and I am not trying to jack this thread but.... I am wondering what maker of headers you went with and why you chose them.

11-03-2012, 06:24 AM	#13
Happy_Dan Happy_Dan Drives: 2012 IOM Camaro ZL1 #569 Join Date: Dec 2011 Location: New Boston, NH Posts: 2,239	The reason I picked SLP is two fold. I know the work that SLP did on the 4th Gen Camaro SS and the Firehawk. The family along with GM kept the Camaro alive a couple of more years and they are a solid family business. I was lucky enough to visit the plant and watched them build some headers. They have racks of steel made in USA. They take those long lengths of pipe and cut them and bend them to shape for each cylinder and put them in a bin. Then they take the 8 bins and weld the pipes together. They ceramic coat them, bake them and polish them all right there in Toms River NJ, USA. They use all quality, made in USA material, assemble everything in the USA with USA workers. I love mine! Sound great, look great and made in USA. I am not paid to do SLP commercials, LOL. That is just me and 12 years of experience with the Hamburger family and company.