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Old 04-26-2010, 11:38pm   #1
zz4vetteguy
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Default Anyone see these at the other place?

What do you all think?

NEW~ XSPower Longtube Headers / X-pipe (available first of JUNE) - Corvette Forum
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Old 04-26-2010, 11:52pm   #2
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Seems like a decent price, if I didnt have mine I would go for it.
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Old 04-27-2010, 6:41am   #3
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IB4someonesaysyougetwhatyoupayfor

These look great, and the price is right for a change.

Thanks for the tip!
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Old 04-27-2010, 7:38am   #4
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helluva deal on what appears to be a well made product.
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Old 04-27-2010, 10:19am   #5
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Good price for mid-length headers. I don't see how you can go wrong - if they fit well.
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Old 04-27-2010, 10:48am   #6
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Quote:
Originally Posted by WKMCD View Post
Good price for mid-length headers. I don't see how you can go wrong - if they fit well.
Very nice price
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Old 04-27-2010, 1:37pm   #7
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Looks like a 100% copy of American Racing.... wonder who makes them.
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Old 04-30-2010, 6:43am   #8
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Joe,
You get what you pay for 4 sure...........in a nut shell, I would ask them:
Were are they made
What company supplies the raw tubing
How are they welded.............QA
As RIF........here is some tech info & my tweaking:

18/8 stainless 304 is used for many exhaust system components. For those who don't know 304 can be made in 18/0 upwards the 18 refers to the % of chromium and the 8 to the % of nicol.
The quality/Supplier of that tubing plays a big part despite the % figure above

If you use a magnet, it will be stronger on the lower nickel content 304 as opposed to the higher and hence the lower will degrade quicker.

For the most demanding "cost is no object" applications, Inconel tubing is commonly used. The term has become something of a generic reference to a family of austenitic nickel-chromium-based superalloys which have good strength at extreme temperatures and are resistant to oxidization and corrosion. Because of the excellent high-temperature properties, Inconel can offer increased reliability in header systems, and in certain applications, it is the only material which will do. The high-temperature strength properties can enable weight-reducing designs, since, for a given reliability requirement, Inconel allows the use of much thinner-wall tubing than could be used with other materials. The catch, as usual, is that Inconel tubing is quite expensive.
Certain Inconel alloys retain very high strength at elevated temperatures. One of the favorites for header applications is Inconel-625, a solid-solution alloy containing 58% Nickel, 22% Chromium, 9% Molybdenum, 5% Iron, 3.5% Niobium, 1% Cobalt. It has good weldability using inert-gas-shielded-arc processes, and good formability in the annealed condition, and has a lower thermal expansion rate than the stainless alloys commonly used in exhaust systems. Weldability and formability are both important because of the somewhat limited availability of Inconel tubing sizes, which often makes it necessary to form tubing sections from sheet. As with many metals, the high-temperature strength diminishes as the amount of time the parts are exposed to extreme temperatures increases.
Inconel tubing is nearly essential in high-output turbocharged applications such as Formula-One cars and a few Cup teams. No $$$ spared allows them to be able to use Inconel for their headers, both for reliability and for weight savings.
Some teams are routinely using headers made from (0.020 inch) wall Inconel tubing. To compare, in view of the immense heat load imposed by the exhaust gasses of contemporary Formula One engines, many doubt that a set of stainless headers, even in (0.065 inch), would survive. A BMW F-1 engine at full power, graphically illustrates this demanding environment.
There are several austenitic stainless alloys which are commonly used in exhaust systems. In order of reducing temperature capabilities, they are 347, 321, 316 and 304. In addition, special variations in the basic alloy chemistry (carbon, nickel, titanium and niobium) are available to enhance the high temperature strength of these alloys.
Regarding the use of stainless, In NASCAR Cup racing, the 304 and 321 stainless alloys were used more often than Inconel, depending on the preferences of the various teams. In view of the facts that thinwall Inconel headers are (a) very fragile and readily damaged by inadvertent mishandling, (b) "grotesquely" expensive, and (c) provide almost immeasurable gains on a 3600 pound vehicle, his opinion is that the use of Inconel headers is not prudent stewardship of his resources. For a peek at the magnitude of the costs involved, one fabricator told that a single 1-D "U" bend of 2-inch diameter, 0.032-inch wall Inconel tubing would cost somewhere in the neighborhood of $200, whereas the same bend in 321-stainless would be in the $65 range.
Although titanium has been made to work quite well in exhaust valve applications, the practical temperature limits for titanium alloys suitable for tubing is quoted at about (575 °F), which makes that material suitable for lightweight tailpipes in various applications and in certain motorcycle applications as well.

One might ponder why the same materials used for titanium exhaust valves are not used for exhaust tubing. Apparently, the simple reason is cost vs. benefit, since the estimated cost of thin sheets of Ti-6242 were estimated at over $150 per pound in large-quantity purchases. Add to that the fact that this material lacks the ductility to be readily formed into tubes, plus the fact that there would be problems welding the seams of a rolled tube, and yet more problems forming the welded straight tubes into bends, and it becomes evident that there are more suitable materials for exhaust tubing use.

Burns Stainless LLC - Technical Articles

321 stainless steel is used in the aviation industry ( Aircraft exhaust,Boiler Shells,Cabin heaters,Fire walls, Pressure vessels)for it's higher quality alloys which withstand high heat applications.

Most other manufacturers use lower quality 304 stainless. 304 is not as durable as 321 in handling the constant heat cycling exposure produced during the lifetime of an automobile. 304 is also not as resilient as 321 in withstanding the acids given off by an internal combustion engine. If you are looking for the best a lifetime product can offer, 321 stainless steel is the best choice.............I have seen many Vettes owners have the AIR fittings fail.
Some due to a poor grade of 304...............some due to poor welding/prep..............some due to both!
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Old 04-30-2010, 7:14am   #9
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Inb4ATSBpostsupalengthytecharticle.......Dam, too late!
Just my personal opinion, but unless you're going for all out power, you're wasting your money paying 3 times the price for headers.
Let's face it, 90% of the people that put headers on their car, do it for the sound, not the performance.
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Old 04-30-2010, 2:22pm   #10
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Hehehehe...........that was shortened for Joe's smaller grey matter!
But..............I am an informed consumer and work with all kinds of material at work daily
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Old 04-30-2010, 2:39pm   #11
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Nice post Steve!
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Old 04-30-2010, 2:55pm   #12
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So this system is claimed to be US-made, and constructed of 321 SS, which as noted above, is superior in a high heat environment than 304SS is.

I studied the post too, and I'm just not seeing anything wrong with these, assuming they do fit as well as the ARH system they copied.


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Old 04-30-2010, 10:37pm   #13
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Quote:
Originally Posted by Sneaks View Post
Inb4ATSBpostsupalengthytecharticle.......Dam, too late!
Just my personal opinion, but unless you're going for all out power, you're wasting your money paying 3 times the price for headers.
Let's face it, 90% of the people that put headers on their car, do it for the sound, not the performance.
I want it to sound good, but I also want the extra power so the old high mileage motor can carry my fat azz down the track and shave some more time off, and to give it just a little more
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Old 04-30-2010, 10:40pm   #14
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Quote:
Originally Posted by nedih rotaredom View Post
Hehehehe...........that was shortened for Joe's smaller grey matter!
Has someone been telling stories about me again? Oh wait, your talking about my brain.
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Old 05-01-2010, 1:16pm   #15
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So what is the difference between Catted and Non-Catted.....

I know the obvious so,

IB4TONEHASCATS&ONEDOESNOT POST

I mean, what is the difference between performance, legality, and such. I am guessing since I drive my car daily the catted system is where I need to go.
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Old 05-03-2010, 7:34am   #16
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Quote:
Originally Posted by zz4vetteguy View Post
So what is the difference between Catted and Non-Catted.....

I know the obvious so,

IB4TONEHASCATS&ONEDOESNOT POST

I mean, what is the difference between performance, legality, and such. I am guessing since I drive my car daily the catted system is where I need to go.
I'd say the biggest difference is the $$ amount you could be fined for not running cats! I personally would go with the high flow cat version, but I also wear my seat belt, run a front plate, and don't talk on the phone while driving.
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Old 05-03-2010, 7:41am   #17
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I've heard a lot of people say that no cats will give you very strong exhaust fumes but I don't know that to be factual.
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Old 05-03-2010, 7:42am   #18
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Originally Posted by DropTheTop View Post
I'd say the biggest difference is the $$ amount you could be fined for not running cats! I personally would go with the high flow cat version, but I also wear my seat belt, run a front plate, and don't talk on the phone while driving.
I agree on the catted version as well.



Joe,

Here's a link to some high-flow cats that are cheap and come highly recommended on the other forum. These are the one's I'm going to be using.

Not exactly sure on the metallic vs. non-metallic though. Anyone have any insight on which would be better?

Online performance car parts site Performance-Curve.com carries Nissan performan - Thunderbolt - Spin Cat

Online performance car parts site Performance-Curve.com carries Nissan performan - Thunderbolt - Spin Cat - Metallic
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Old 05-03-2010, 7:49am   #19
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Great prices, thanks!
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Old 05-03-2010, 7:49am   #20
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Quote:
Originally Posted by Munch View Post
I've heard a lot of people say that no cats will give you very strong exhaust fumes but I don't know that to be factual.
I ride in 2 that are fumefull, the yellow smells nice..............all depends on the mods as well
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