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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 01-17-2011, 10:30 PM   #1
ronniels3
 
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Quietest and Simplest Headers

I am looking to get a little more performance out of my new SS. However I do not want it to be that loud. I will use the stock mufflers. Which company makes the quietest headers? I also want to use as much of the factory exhaust as possible. Companies that appealed to me were Stainless Works, Borla, and B and B. I do not want to change all the pipes back to the mufflers at this time so I am not interested in ARH or Kooks.

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Old 01-17-2011, 10:34 PM   #2
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Just to let you know....almost every major header Mfg (including ARH and KOOKS) sell just the headers and connection pipes to hook up to your stock exhaust system. They are also going to be about the same loudness no matter what the brand is you get.

If you just want a little more performance without all the money you could go with a High Flow cat setup from JBA or SOLO. Won't be as good as long tubes and will be about the same in the loudness category.
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Old 01-17-2011, 10:50 PM   #3
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"Quietest and Simplest Headers"

No such thing
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Old 01-18-2011, 11:10 AM   #4
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Get a set of Kooks or ARH headers with catted connection pipes. Use the factory cat back exhaust and you are all set. Anything else is not worth the time/money/effort IMO.
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Old 01-18-2011, 11:13 AM   #5
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Got stainless works. They sound awsome and very nice quality. Talk to Apex motorsports.
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Old 01-18-2011, 11:42 AM   #6
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Quote:
Originally Posted by Milk 1027 View Post
"Quietest and Simplest Headers"

No such thing
This is correct. There is no meaningful difference in volume between brands. Just make sure to use high flow cats rather than straight pipes.
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Old 01-18-2011, 12:16 PM   #7
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Quote:
Originally Posted by SS 376 View Post
This is correct. There is no meaningful difference in volume between brands. Just make sure to use high flow cats rather than straight pipes.
Are the headers louder without the cats? Im in Florida and there are no emmisions here so I can get away witout them but being to loud is my main concern. I had a vette with 1 7/8" ARH with cats with Corsa Indies and it was F*ckin loud.
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Old 01-18-2011, 12:18 PM   #8
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No cats would be louder.
If you want to keep noise down, get shorties, keep your stock cats, resonators, and mufflers, and call it a day.

The "Quietest" (kind of an oxymoron) LT headers set up would be Long tubes with high flow cats, resonators and stock mufflers.
Just pick the one that sounds the best to you.
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Old 01-18-2011, 12:20 PM   #9
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Quote:
Originally Posted by ronniels3 View Post
Are the headers louder without the cats? Im in Florida and there are no emmisions here so I can get away witout them but being to loud is my main concern. I had a vette with 1 7/8" ARH with cats with Corsa Indies and it was F*ckin loud.
Without cats, your ECU will throw codes and would require you to tune the sensors out. Unless you can live with constant engine management warnings, install HF cats. My opinion.
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Old 01-18-2011, 12:20 PM   #10
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Originally Posted by ITGuy11 View Post
Get a set of Kooks or ARH headers with catted connection pipes. Use the factory cat back exhaust and you are all set. Anything else is not worth the time/money/effort IMO.
I see that stainless works sells this setup and it is fairly cheap. What are the prices to go this route with Kook's or ARH? I want an American made header.
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Old 01-18-2011, 12:47 PM   #11
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Loud is pretty subjective. I thought my 4th gen was quiet with the Flowmaster it came with when I got it, but most begged to differ. Considering the 5th gen is dead quiet stock, you would probably still be pretty quiet if you were to do LTs, high flow cats, and keep the stock gas can mufflers/resonators. Once you get the stock cats removed or replaced the stock exhaust actually flows pretty good apparently. Even with high flow cats though a tune is still a good idea with LTs.
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Old 01-18-2011, 01:01 PM   #12
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It is all personal pref...I personally can't stand LTs without Cats. I think it is stupid loud and sometimes a lil stanky.

There is a huge difference between too loud and versus having a great tone. With that said, I agree with the posters that told you to go Hi-flows first. It will save you a TON of money as opposed you dropping cash on LTs (approximately $1,000 for a decent set) and then you hate the sound. At least with hi flows you can always move up to LTs if it still too quiet.
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Old 01-18-2011, 03:53 PM   #13
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Shorties would be exactly what you have asked for.

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Old 01-18-2011, 06:17 PM   #14
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Old 01-18-2011, 06:24 PM   #15
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Don't waste money on high flow cats as you'll just end up buying long tubes anyway if you want more performance. There are quieter mufflers out there then the stock ones if it's too loud. I installed cat delete pipes and it wasn't worth the missing power for the money saved..... unless I decide to spend the $$$ on juice!
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Old 01-18-2011, 07:40 PM   #16
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Any header, LTs or shorties, work well with the stock exhaust. It's free and no drone! Other exhaust mods after the cats to the back is for sound only and will give no additional horsepower.

However if you go big HP with a stroker or power adder you could see some gains with an end to end 3 inch exhaust.
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Old 01-18-2011, 07:45 PM   #17
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go to you tube and listen to Highcompression's sound clip. He has LT's without cats and stock exhaust and mufflers. Nevermind I will add it for you.



here is mine with LT's, High Flow Cats and Kooks Street Sleeper Exhaust

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Old 01-18-2011, 09:53 PM   #18
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As the guys mentioned above, having no cats will most definitely make the car louder, with or without headers. With todays free flowing cat technology, you can still have cats and lose little, if any horsepower.

From a sound standpoint, the car will be slightly louder with a set of headers and cats with the stock exhaust system. The sound will not be insane like a set of long tubes and corsa indy's (my z06 had long tubes, cats, and borla stingers so i know what you mean about loud!) A lot of our customers actually prefer this set up to keep it on the quieter side but make sure people know you arent messing around either. The exhaust will be more authoritative with a set of headers and will increase in dB, but it will not annoy you.

We actually are having an incredible deal right now on a set of american racing headers, 1 3/4 or 1 7/8 your choice, that will hook up to the stock system and not replace the mid pipes...just headers and cats. They are some of the best headers money can buy and the HP gains are excellent. PM sent!

John@trackspecmotorsports.com

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