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

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Old 06-02-2013, 09:54 PM   #1
tm123
 
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My wife says my car isn't loud enough, so...

I've been looking at upgrading the exhaust in my A6 SS. I don't know much about this, but from what I've read on this forum, adding a cat back exhaust will improve the tone, but not do much for power. If this is true, it seems like a waste to me. If I'm going to spend the money, I'd rather buy long tube headers, high flow cats, and leave the stock exhaust in place. My questions are:

1) Will the power increase be less than if I replaced the whole exhaust?
2) Will the exhaust tone improve even though the stock exhaust is being used?

As I said, I don't know much about this so if these are stupid questions, sorry. Thanks.
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Old 06-02-2013, 10:01 PM   #2
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If you are getting headers, you might as well get a full exhaust such as the SW retro chambered catback with SW headers. If not, just get a muffler delete and headers. Stock mufflers suck either way.
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Old 06-02-2013, 10:01 PM   #3
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Long tubes to stock system is fine. You might like it but you can get an axleback if you want to change the sounds even better.
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Old 06-02-2013, 10:03 PM   #4
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you will need a tune if you get LT headers, and from what i hear, you will want a tune if you do any exhaust upgrades just because of AFM
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Old 06-02-2013, 10:04 PM   #5
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Originally Posted by mikeyg36 View Post
If you are getting headers, you might as well get a full exhaust such as the SW retro chambered catback with SW headers. If not, just get a muffler delete and headers. Stock mufflers suck either way.
+1
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Old 06-02-2013, 10:20 PM   #6
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Have you ever considered exhaust cutouts? In my opinion it's the best of both worlds, you can leave them closed and the car will sound factory, open them up 50% and it sounds like a good low rumble, open them all the way to get the true sound of the engine.

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Old 06-02-2013, 10:31 PM   #7
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you will need a tune if you get LT headers, and from what i hear, you will want a tune if you do any exhaust upgrades just because of AFM
Yes this . Plan on tuning your car.
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Old 06-02-2013, 10:31 PM   #8
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Headers make the biggest difference for added power in your exhaust. All upgrades that free up flow downstream from the headers will benefit more because of the headers. With these cars once you free up exhaust flow you will see some power loss low in the band and power increase at high rpms. A tune fixes that.
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Old 06-02-2013, 10:42 PM   #9
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Ok thanks. I gathered I would need a tune (again based on what I've read on this forum), which leads to my next question. Where would I get this done, and what can I expect to pay? I'm not planning on installing the headers myself, so could the shop do the tune for me as well? In general this whole "tuning" thing is a mystery to me, and probably not something I want to tackle myself. I have no problem losing the AFM, and if the tune helps with power, I'm all for it.
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Old 06-02-2013, 10:46 PM   #10
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Ok thanks. I gathered I would need a tune (again based on what I've read on this forum), which leads to my next question. Where would I get this done, and what can I expect to pay? I'm not planning on installing the headers myself, so could the shop do the tune for me as well? In general this whole "tuning" thing is a mystery to me, and probably not something I want to tackle myself. I have no problem losing the AFM, and if the tune helps with power, I'm all for it.
First, installing headers is incredibly easy to do yourself. Second, for a remote tune you buy a hand held tuner such as a Diablo intune or HP tuner, and then contact a tuner such as Matt@FSP or Phil at Tampa Tuning. You tell them your mods, and they will create the tune for you. Then just upload the tune to your car and you're done! I know if you buy a tuner from Matt he will give you the tune for free.
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Old 06-02-2013, 10:50 PM   #11
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Mikeyg36 is right, but my opinion is that the best way to tune your car is to find a good performance shop close to you and have them put your car on the dyno and tune it. Where are you located?
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Old 06-02-2013, 10:51 PM   #12
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The best way to tune your car is to find a good performance shop close to you and have them put your car on the dyno and tune it. Where are you located?
This is true, but it's more expensive, and isn't really worth it for just headers.
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Old 06-02-2013, 10:53 PM   #13
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My wife said the same thing when we got my Camaro. So this is what I did. 2013 Camaro Stainless Power no cats and stock L99 exhaust. She loves it now!

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Old 06-02-2013, 10:57 PM   #14
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This is true, but it's more expensive, and isn't really worth it for just headers.
Lol...guess we are typing at the same time...I tried to amend my post before you saw it You are right though, might not be worth paying the extra $$ if you are planning future engine mods
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Old 06-02-2013, 11:01 PM   #15
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Ok thanks. I gathered I would need a tune (again based on what I've read on this forum), which leads to my next question. Where would I get this done, and what can I expect to pay? I'm not planning on installing the headers myself, so could the shop do the tune for me as well? In general this whole "tuning" thing is a mystery to me, and probably not something I want to tackle myself. I have no problem losing the AFM, and if the tune helps with power, I'm all for it.
I suggest JRE street package. CAI, headers, hf cats, and an SCT tune. All in one package. Read this about an SCT X3 tune from Ted at JRE. Then check out JRE's web site and look for the street package info. http://www.camaro5.com/forums/showthread.php?t=276696
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Old 06-03-2013, 04:56 AM   #16
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I have toyed with idea of doing the headers myself. I have the mechanical ability to do it but I have no access to a lift and I don't own any jackstands, or even a jack for that matter. I'm afraid that I'll be buying all this stuff that I'm never going to use again, which is usually what happens when I take on these projects. I really would enjoy tackling it myself if I had everything I needed. Just not really sure what all that is.

Finding a place to get it done is another issue. It's not like I'm going to take it to Midas I live in Leesburg, VA- outside of DC.
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Old 06-03-2013, 05:16 AM   #17
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Headers, long or shorties, if you live in an emissions free area go straight no cat mid-pipe (or HF cats) and muffler delete. Shop around and it can be all had quite reasonable.

Doing it yourself is easy as already pointed out (4-6 hrs in the driveway). Maybe it's time for the "excuse" to buy a decent jack and some stands? Living in Lessburg there has to be some folks from the forum around the area than can help or point you in the right direction. I used to live in Warrenton and know the area quite well. Post up in the local region part of the forum and see what pops up.
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Old 06-03-2013, 05:29 AM   #18
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Quote:
Originally Posted by tm123 View Post
I've been looking at upgrading the exhaust in my A6 SS. I don't know much about this, but from what I've read on this forum, adding a cat back exhaust will improve the tone, but not do much for power. If this is true, it seems like a waste to me. If I'm going to spend the money, I'd rather buy long tube headers, high flow cats, and leave the stock exhaust in place. My questions are:

1) Will the power increase be less than if I replaced the whole exhaust?
2) Will the exhaust tone improve even though the stock exhaust is being used?

As I said, I don't know much about this so if these are stupid questions, sorry. Thanks.
1) The stock cat back flows extremely well, it is just very quiet and heavy. You will not sacrifice power but you will still be hauling around those "trash cans".

2) Yes. It won't be as rowdy as it would be with a more aggressive aftermarket system but you are going to know that some changes have been made.
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