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

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Old 10-21-2008, 10:21 PM   #1
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Camaro Shorty headers price?

hi guys first time poster just joined. im wondering how much the shorty headers are gonna run? i havent seen a price and tried searching.
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Old 10-21-2008, 10:40 PM   #2
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price has not been published yet. I'm thinking after SEMA we will know (first week Nov). Oh and welcome to Camaro5
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Old 10-21-2008, 11:26 PM   #3
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honestly.... not trying to quell gm's sales, but unless you have strict emissions testing, just wait for the Longtube headers to come out. the gains from the shorties arent going to compare to longtubes for the same price.
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Old 10-22-2008, 09:14 AM   #4
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I'll be staying away from longtubes myself ... emissions won't be fun ... I think the shorties will provide a decent gain w/ supporting mods ..

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Old 10-22-2008, 09:44 AM   #5
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I'm going to make sure it's on my bill of sale so that I can show the cops if I get pulled over and they tell me I am running non original equipment on my car.
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Old 10-22-2008, 11:12 AM   #6
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shorties won't move the location of the cats, so I don't know what cops would have a problem with.

LT's are definitely the way to go, but initially I'm sure they will be ~1200 for a set of them, which sux. it will take a year or two before affordable ~$500 headers are available if it follows LS1 4th gens. For that reason, I may take the factory shorty route and because factory 'headers' are just damn cool.

I would expect them to make about 5-10rwhp over stock and LT's should make ~20-25rwhp.
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Old 10-22-2008, 12:46 PM   #7
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honestly.... not trying to quell gm's sales, but unless you have strict emissions testing, just wait for the Longtube headers to come out. the gains from the shorties arent going to compare to longtubes for the same price.
thanks for the replies guys. thats the reason im leading toward the shorties because ca is strict with emmisions but since i have 5 yrs till smog i could run longtubes. i just dont wanna have to keep switching em
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Old 10-22-2008, 01:14 PM   #8
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Well over here in north Georgia we don't care too much about smog, and I've been running straight pipes on my 4th gen for a couple months now, nobody's said anything. But it took a ton of tuning to get the computer to shut up about the emissions.
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Old 10-23-2008, 10:16 AM   #9
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Well over here in north Georgia we don't care too much about smog, and I've been running straight pipes on my 4th gen for a couple months now, nobody's said anything. But it took a ton of tuning to get the computer to shut up about the emissions.
a ton of tuning?? there are only a couple codes to delete and you'll be fine.
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Old 10-23-2008, 11:32 AM   #10
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Well over here in north Georgia we don't care too much about smog, and I've been running straight pipes on my 4th gen for a couple months now, nobody's said anything. But it took a ton of tuning to get the computer to shut up about the emissions.
Sounds like the modern automotive equivalent of a mullet.
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Old 10-23-2008, 01:32 PM   #11
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Based on real world results from the Corvette community I'd pass on these. You'll be better off waiting for LG to work their magic.

Go visit the Corvette Forum and ask this question, you'll most likely get be told not towaste your time, effort and $$$.
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Old 10-23-2008, 03:54 PM   #12
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Sounds like the modern automotive equivalent of a mullet.
ssshhhhhhh.........that's a bad word around here.
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Old 10-26-2008, 06:02 PM   #13
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I'm not a car moron, but just wanted to clarify something (maybe others have the same question).

When you refer to shorties and long tubes, thats the difference in length between the engine exhaust value and the cat? Is that correct?

Came to this conclusion because the longer the tube, the more the exhaust cools, and the slower the reaction that removes unwanted products from the exhaust.

does that sound even close?
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Old 10-26-2008, 06:14 PM   #14
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This can get pretty long trying to explain the physics behind it. Long tubes will give you more power but are illegal in some areas like California.

I have no emissions where I live so I can do whatever. I never had a cop check out if I have headers so that's a little weird. Maybe if you get caught street racing.
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Old 10-26-2008, 06:16 PM   #15
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This can get pretty long trying to explain the physics behind it. Long tubes will give you more power but are illegal in some areas like California.

I have no emissions where I live so I can do whatever. I never had a cop check out if I have headers so that's a little weird. Maybe if you get caught street racing.
Oh, so long tubes means totally removing the cats?

Yeh, if so, that is totally illegal in CA.
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Old 10-26-2008, 06:18 PM   #16
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Oh, so long tubes means totally removing the cats?

Yeh, if so, that is totally illegal in CA.
Most header companies give you the option. Cats or ORP(off-road pipes). The ones with cats will be more money since you're buying 2 high flow cats. They do move cats farther away from the engine so they are still illegal in some areas.
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Old 10-26-2008, 06:21 PM   #17
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They have to have a carb number they can be legal, you just have to pass visual (have carb numbers for all mods) and pass the sniffer

some companies have longtubes with carb numbers but not many
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Old 10-27-2008, 08:50 AM   #18
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I'm not a car moron, but just wanted to clarify something (maybe others have the same question).

When you refer to shorties and long tubes, thats the difference in length between the engine exhaust value and the cat? Is that correct?

Came to this conclusion because the longer the tube, the more the exhaust cools, and the slower the reaction that removes unwanted products from the exhaust.

does that sound even close?
not quite right and your wording is off. It is the difference in length of the primaries. A long-tube will have around 24" tubes off the exhaust port (not valve). Shorties are about 12". LT's have much better scavenging and flow.
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Old 10-27-2008, 10:39 AM   #19
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However, long tubes (LTs)will cool the exhaust, which in not desirable. I've checked my tube temperature at the exhaust port flange and just in front of the cat' just past the merge collector and the exhaust port was around 800*, but by the time the exhaust got to the cat' it was down to about 450. A reason LTs are illegal is because they allow the exhaust to cool and they don't always light the cats' off quick enough (cats' need to operate at high temperatures in order to burn off emissions) and don't start working as quickly as the smog-people require. The argument can be made that header material, coatings, or wraps will help but I just don't think any LT would pass the light-off time (if I'm not mistaken, there is an actual measurement of time that the cats' are allowed to take in order to reach operating temperatures and if they aren't met, it doesn't pass). Someone could break this down better than I.

I think they'll be close to the cost of a catback which I'm sure will be in the $1100 neighborhood because of the dual exhaust arrangement. Being it's been said they're going to be stainless, I'm sure they're going to get pretty close in price and if they're going to have CARB ceritification, they have to get the certification costs back, which are not cheap.

JMHO.
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Old 10-27-2008, 02:29 PM   #20
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However, long tubes (LTs)will cool the exhaust, which in not desirable. I've checked my tube temperature at the exhaust port flange and just in front of the cat' just past the merge collector and the exhaust port was around 800*, but by the time the exhaust got to the cat' it was down to about 450. A reason LTs are illegal is because they allow the exhaust to cool and they don't always light the cats' off quick enough (cats' need to operate at high temperatures in order to burn off emissions) and don't start working as quickly as the smog-people require. The argument can be made that header material, coatings, or wraps will help but I just don't think any LT would pass the light-off time (if I'm not mistaken, there is an actual measurement of time that the cats' are allowed to take in order to reach operating temperatures and if they aren't met, it doesn't pass). Someone could break this down better than I.

I think they'll be close to the cost of a catback which I'm sure will be in the $1100 neighborhood because of the dual exhaust arrangement. Being it's been said they're going to be stainless, I'm sure they're going to get pretty close in price and if they're going to have CARB ceritification, they have to get the certification costs back, which are not cheap.

JMHO.

Very accurate! The shorties tend to also bolt up to the existing cats, H or Y pipe at the stock location. Some companies sell shorties that can only be used with their mid pipes but that is rare. Don't discount the power of the shorties verses the long tubes. We ran shorties on our race car (class rules) and made very good power. Also the shorties have more ground clearance.

With long tubes we could never get the idle to go closed loop because the O2's could not get hot enough.


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Old 10-27-2008, 03:55 PM   #21
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Great info guys! I've always ran LT's and their sound and numbers are amazing!
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Old 10-27-2008, 04:46 PM   #22
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Very accurate! The shorties tend to also bolt up to the existing cats, H or Y pipe at the stock location. Some companies sell shorties that can only be used with their mid pipes but that is rare. Don't discount the power of the shorties verses the long tubes. We ran shorties on our race car (class rules) and made very good power. Also the shorties have more ground clearance.

With long tubes we could never get the idle to go closed loop because the O2's could not get hot enough.


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May we ask for any sort of performance numbers and whether or not we can get CARB exemption with these babies?
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Old 11-04-2008, 10:21 PM   #23
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Questions???

does anyone have an decent guess as to the power gains for the shorties? Catback exhaust? Cold air intake?

Price???
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Old 11-26-2008, 08:24 PM   #24
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does anyone have an decent guess as to the power gains for the shorties? Catback exhaust? Cold air intake?

Price???
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Old 11-26-2008, 08:44 PM   #25
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does anyone have an decent guess as to the power gains for the shorties? Catback exhaust? Cold air intake?

Price???
I'm gonna go out on a limb here...This is apples to oranges now...Stainless shorties for a small block V8 usually advertise ~8-10 hp gain, a little better torque gain. They ARE stainless (which if taken care of may last the life of the car) Having said that, expect them to be well north of 600 bucks...They ARE stainless!
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