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UPDATED 11/1/2012: LS4 Headers from CalSpeed Coming Soon!

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Old 10-21-2012, 01:26 AM
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When we get more info so will you guys. We are all waiting patiently. And yes they will be made only in the U,S of A.
Old 10-21-2012, 09:35 AM
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I'm not pissing on anything. Wait and see.

Here is a good read. http://www.performancetrucks.net/forums/showthread.php?t=501513

Last edited by neilownz; 10-21-2012 at 01:07 PM.
Old 10-22-2012, 10:02 AM
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Looks like a thread just bashing CalSpeed. I see nothing of real value to it. Jim answered his questions and then he bashed the answers too, even though 90% of what he was stating was speculation/opinion. I don't think I would put a lot of weight on a conversation like that.
Old 11-01-2012, 11:15 AM
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Got an update!

Jim from CalSpeed called yesterday to tell me that we should have the prototype set very soon. He'll know more on Tuesday, but once the prototype is received, we'll install them on a test car and make the final changes. These changes will be sent to back to the manufacturer, and then the updated final prototype will be sent shortly thereafter.

I know these timelines are vague, but we'll hopefully have more info early next week! It is getting closer!!

Thank you all for being so patient!!
Old 11-01-2012, 03:28 PM
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Right on brother! I cant wait for em'!!
Old 11-07-2012, 04:28 AM
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Ill take a set.. keep me posted plz
Old 11-07-2012, 08:58 AM
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Originally Posted by 08GXPGXP
Ill take a set.. keep me posted plz
No problem!!
Old 11-07-2012, 10:29 AM
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Originally Posted by LS1 Racing
Jim from CalSpeed called yesterday to tell me that we should have the prototype set very soon. He'll know more on Tuesday, but once the prototype is received, we'll install them on a test car and make the final changes. These changes will be sent to back to the manufacturer, and then the updated final prototype will be sent shortly thereafter.
So is calspeed building these headers, or are they simply purchasing them from an outside company? From your post it seems like they will not be building them? You may have posted this in another post and I missed it or I am simply just misreading your post.
Old 11-07-2012, 11:19 AM
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Originally Posted by BlackImpSS
So is calspeed building these headers, or are they simply purchasing them from an outside company? From your post it seems like they will not be building them? You may have posted this in another post and I missed it or I am simply just misreading your post.
CalSpeed is providing specs to a header manufacturer that will be building them accordingly, very much like most performance parts are developed and produced. CalSpeed actually specializes on LS motor builds, swaps, and turbo kits. Since they do so many swaps, they've developed a need for custom exhaust (headers, catbacks, etc.), so they now work with a manufacturer to get this stuff built.
Old 11-07-2012, 12:03 PM
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I hate to be petty but any possible eta?
Old 11-07-2012, 12:12 PM
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Originally Posted by LS1 Racing
CalSpeed is providing specs to a header manufacturer that will be building them accordingly, very much like most performance parts are developed and produced. CalSpeed actually specializes on LS motor builds, swaps, and turbo kits. Since they do so many swaps, they've developed a need for custom exhaust (headers, catbacks, etc.), so they now work with a manufacturer to get this stuff built.
Makes sense. I was just curious if they had their own manufacturing facility. I know they've been doing LS and truck headers for awhile at a great price. And of course when anythings cheaper than the "name brand" stuff you'll see bad reviews, but with the amount of people ive seen that have been satisfied with calspeed headers I wouldn't hesitate to run a set.

Anyway they would be willing to do manifolds for the cartuning kit?
Old 11-07-2012, 01:00 PM
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Originally Posted by 91parkave
I hate to be petty but any possible eta?
I left Jim a message a couple of hours ago.

Originally Posted by BlackImpSS
Makes sense. I was just curious if they had their own manufacturing facility. I know they've been doing LS and truck headers for awhile at a great price. And of course when anythings cheaper than the "name brand" stuff you'll see bad reviews, but with the amount of people ive seen that have been satisfied with calspeed headers I wouldn't hesitate to run a set.

Anyway they would be willing to do manifolds for the cartuning kit?
Based on the number of Cartuning kits being sold for the LS4, I'm not sure he could make business justification for doing it, as he needs a minimum order of 25 sets that he has to buy up-front.
Old 11-07-2012, 07:37 PM
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I apologize if this is a newbie post (because...well...it is), but can someone explain to me exactly what the advantages of headers are?

I understand that they "replace" the exhaust manifold and have something to do with increasing the efficiency of expelling the exhaust gasses. This, through some sort of magic, then causes an increase in generated power. Can someone explain this in accurate, but layman's terms?

Also, are there any supporting mods that need to be done when installing headers?

Again, I'm sorry for the newbie questions, but I figure you have to learn somehow.

Many thanks!
Old 11-07-2012, 08:13 PM
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Originally Posted by OverlordSpock
I apologize if this is a newbie post (because...well...it is), but can someone explain to me exactly what the advantages of headers are?

I understand that they "replace" the exhaust manifold and have something to do with increasing the efficiency of expelling the exhaust gasses. This, through some sort of magic, then causes an increase in generated power. Can someone explain this in accurate, but layman's terms?

Also, are there any supporting mods that need to be done when installing headers?

Again, I'm sorry for the newbie questions, but I figure you have to learn somehow.

Many thanks!
Basically the more air you can get in/out of the engine the more fuel can be added. This means more hp. A tune would be recommended to see the full potential of the headers. Also a ls1/6 intake swap wouldn't hurt anything.
Old 11-19-2012, 07:52 AM
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I am officially stating that "I Want A SET"!!!!!!!
Old 11-19-2012, 07:56 AM
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Originally Posted by cocor
oh man. I'd love a cam/intake. I want this car to lope like a prostock. Lol
what he said!!!!!!!!
Old 11-19-2012, 10:48 AM
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question for calspeed might they want to see some money down so they can hurry up and produce these sets?? im in
Old 11-20-2012, 08:08 PM
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I'd put money down now as well.
Old 12-01-2012, 06:40 AM
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Did you hear anything on the headers yet?
Old 12-07-2012, 01:09 PM
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im getting the feeling this will never come to a production line after all


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