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

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Old 11-23-2010, 05:28 PM   #1
Blue Menace
 
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Performance Mod Questions

Howdy Folks,

I've been trying my best to learn all I can about various performance mods, but still feel quite confused about various issues. Here's where ya'lls expertise can help me out.

First, I'm curious about what exactly voids the warranty. Is it just a tune? Just the addition of headers? etc.

Second, assuming everything else is stock, what's the difference between adding headers versus high flow cats? What does the combination produce?

Finally, now assuming I've already added a CAI and an aftermarket exhaust (I'm going with Solo Mach-X) what would be the difference in both performance gains and sound with just headers, with just high flow cats, and with the combo.

Thanks in advance for any help. I've already learned lots from this forum.

I drive an L99 SS.
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Old 11-23-2010, 06:49 PM   #2
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Originally Posted by Blue Menace View Post
Howdy Folks,

I've been trying my best to learn all I can about various performance mods, but still feel quite confused about various issues. Here's where ya'lls expertise can help me out.

First, I'm curious about what exactly voids the warranty. Is it just a tune? Just the addition of headers? etc.

Second, assuming everything else is stock, what's the difference between adding headers versus high flow cats? What does the combination produce?

Finally, now assuming I've already added a CAI and an aftermarket exhaust (I'm going with Solo Mach-X) what would be the difference in both performance gains and sound with just headers, with just high flow cats, and with the combo.

Thanks in advance for any help. I've already learned lots from this forum.

I drive an L99 SS.
1. Depends on your dealer. Also they won't void your entire warranty. They can however say not warranty any damage that they can directly relate to an after market mod.

2. Headers is where you get the largest gain when upgrading your Exhaust system. A good set of headers either comes catted(with high flow cats like Kooks) or not (off road). High Flow cats by them selves offer gains but are second to Long Tube headers.

If you buy headers, they don't just mate with your existing cats, you either run with no cats, or buy catted connection pipes.

3. With Header its a big boost 30+hp (40 or more with a great tune), if you dont get headers and get high flow cats I can't say, I can only guess it would be a bit louder but HP wise 5hp?(maybe more)

Sound wise, you will be opening pandora's box, depending on your cat back system.
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Old 11-23-2010, 06:56 PM   #3
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Awesome! Thanks for the feedback. Anyone out there know what cats only does?
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Old 11-23-2010, 10:10 PM   #4
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Awesome! Thanks for the feedback. Anyone out there know what cats only does?
Is your question what does a set of mid-pipes with High Flow cats does?

Basically it replaces the two (a total of four) factory headers with one (a total of two) high flow cats. They flow much better and thus allow your car to breathe better. A freer flowing exhaust is going to give you more horsepower.

Typically people will go with HF cats for one of two reasons. First off they are alot cheaper than Long Tubes with HF cats. Secondly they are a great way to give a good amount of HP without having to tune your car if you are worried about warranty claims.

If you want to find out more about HF cats then you should do a search in the V8 section. SOLO and JBA are the more popular brands.
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Old 11-24-2010, 06:12 AM   #5
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Damn, caverman, ya got me. I'm not exactly sure WHAT my question is. I started out not even knowing what headers looked like...I've come a long way since then. I suppose what I'm asking--and yes I've tried searching specifically for this answer--is why might someone do just headers or just high flows, etc? Most folks seem to go the whole way, but I'm not so sure I want/need that much.
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Old 11-24-2010, 07:01 AM   #6
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If you go with Long Tube Headers you will need a tune. Thus you will void your warranty. If your warranty is an isue you can buy some nice shorty headers and High flow cats. The gains will be decent (not near as good as long tubes) but your car will sound awsome and your warranty will be intact.
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Old 11-24-2010, 09:14 AM   #7
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A lot of your questions are answered in posts at TheHorsepowerJunkies.com with more being added all the time. Feel free to hit me up with any questions you have as well.
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Old 11-24-2010, 09:33 AM   #8
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I also have an A6 car the tune is welll worth it imo if your concerned about the warranty then thats a different story
Id go all the way with headers too, its a huge difference
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Old 11-24-2010, 10:19 AM   #9
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It's always hard to determine what voids a warranty because really it depends on how cool your dealership is. I doubt high flow cats add anything more than a horse or two. With a full TSP header & exhaust system, TSP Cold Air, and tune my car gained right at 50rwhp.
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Old 11-24-2010, 10:54 AM   #10
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Quote:
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It's always hard to determine what voids a warranty because really it depends on how cool your dealership is. I doubt high flow cats add anything more than a horse or two. With a full TSP header & exhaust system, TSP Cold Air, and tune my car gained right at 50rwhp.
I just found a new dealer, they're an hour away but my local dealer sucks. This one handles modded vettes and modded camaros. They told me that no matter what I do (I currently have catback exhaust, CAI, tune, catch can) and they will not void it. They will let me keep warranty until it expires
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Old 11-24-2010, 11:33 AM   #11
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Get the headers and a tune. While you're at it, put in a new cold air intake. Your car will breathe much better that way.

Cats keep the EPA happy. I put Kooks headers with high-flow cats on mine. Not only did the headers and tune boost my rwhp by about 50, but they make the car sound awesome. Win win!
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Old 11-24-2010, 11:47 AM   #12
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A tune will void your powertrain warranty, if you have a major failure. The dealer has no say so on that matter, unless they are willing to pay for your repairs out of their own pocket. If you read through your owners manual you'll find info about voiding the warranty.

You can do things like a no-tune CAI, Vmax ported throttle body, possibly headers with hiflow cats if you get rear O2 sensor extenders or SOLO hiflow catted mid pipes without tuning.
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Old 11-24-2010, 12:06 PM   #13
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Thanks to all for the feedback, it's much appreciated. Apex Chase--excellent website!
And heck ya to the CAI! I've already decided on that (CAI, Inc) and my catback (Solo Performance) and am now debating on the stuff discussed here. So many choices, so little cash in pocket...


Edit: It has recently been brought to my attention that the CAI may not be worth the hype it was printed on...maybe looking at the Vararam now.

Last edited by Blue Menace; 11-24-2010 at 02:26 PM.
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Old 12-15-2010, 08:50 PM   #14
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A tune will void your powertrain warranty, if you have a major failure. The dealer has no say so on that matter, unless they are willing to pay for your repairs out of their own pocket. If you read through your owners manual you'll find info about voiding the warranty.

You can do things like a no-tune CAI, Vmax ported throttle body, possibly headers with hiflow cats if you get rear O2 sensor extenders or SOLO hiflow catted mid pipes without tuning.
Can you PM me with more detail about this please
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