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The tips we have are Wickedflow brand. Been selling them for about 4 years. I haven't ever seen or tried diamond eye. brand, so I really couldn't say. I haven't ever had problems with pitting, though certain styles might discolor. The discoloration can be prevented or corrected by using Flitz metal polish. The discoloration isn't actually the metal changing color, but rather trace residue from the polishing process. The metal cleaner removes the residue and leaves a protective anti-tarnish agent.
409 ss is not know to protect against corosion real well. It does a decent job. The O.E.s started using it for it's ability to handle heat. When the cat converters started to come around they would produce a bunch of heat. As would the stock restrictive mufflers. When the trucks or cars roll off the assembly line the x amount of time to pass emisions testing.Cats need heat to work properly. The easy way to do this is to back up the muffler and hold that heat in the cat. 409 is a great material for handling this kind of heat and not fatigue and break and is some what corosion resistant. It will pit and tarnish as will 304. 409 is the cheapest ss available and still be able to call it a ss. It contains a lot of carbon and very little nickel/ chromium. 304 contains alot more chromium but also has carbon so it is more resistant but will still pit. The best way to keep your tip from pitting is to keep it clean. Lincoln welder has alot of good info about ss, the diferant grades, what they're good and bad for. They also have great welding classes that go into metelurgy. We've sent all our guys to them.
I don't think Magna flow is chroming their ss tips. It would ad another step to the finished product. Before any thing gets chromed you have to polish it, not to a mirror finish but close.
Jerod.
Last edited by jerod jardine; Nov 29, 2007 at 11:08 AM.
The tips we have are Wickedflow brand. Been selling them for about 4 years. I haven't ever seen or tried diamond eye. brand, so I really couldn't say. I haven't ever had problems with pitting, though certain styles might discolor. The discoloration can be prevented or corrected by using Flitz metal polish. The discoloration isn't actually the metal changing color, but rather trace residue from the polishing process. The metal cleaner removes the residue and leaves a protective anti-tarnish agent.
The tips change color from the heat over time. Why do you think Double walled tips are made and discoloration can be somewhat avoided by letting the exhaust pipe stick into the tip some, thus creating a double wall. The polishing compunds used at the factory have little to do with the discoloration, heat does. Keep the tips cool or use a double wall tip. You can polish a yellowed stainless tip all you want and it will still have a yellow tint to it.
I'll have to look into those. These are the Diamond Eye ones. They are manily for diesels so the smalled inlet is 4". I'd have to find a 4" to 2.5" reducer or have my exhaust guy fab something up to make them work.
They seem to have a nice product, but as I mentioned, I have no experience with them. We have stainless tips that are smaller than 4". changes are we would have what you are looking for. Unfortunately, we do not have our online store up yet, so the best I could do is to email you some pictures from our printed catalog.
The tips change color from the heat over time. Why do you think Double walled tips are made and discoloration can be somewhat avoided by letting the exhaust pipe stick into the tip some, thus creating a double wall. The polishing compunds used at the factory have little to do with the discoloration, heat does. Keep the tips cool or use a double wall tip. You can polish a yellowed stainless tip all you want and it will still have a yellow tint to it.
I have just one thing to say about that, Our stainless tips must be better than yours, because we have some vehicles with tips that are 7 years old, and yes they discolored to a yellow tint, and by cleaning them up immediately with the metal polish, all of the yellow tint was removed, and it never returned. It is not the metal that turns yellow, it is the polishing residue. If you claim the polish used at the factory have nothing to do with it, then you are ill informed. At these factories, the polishing compound they use is a type of oil.
I have successfully removed the yellow film, and I can testify that once it has been removed, I have never observed it to return.
And yes, I am fully aware that they have double walled tips, I stock a lot of them. And the double wall is not a guarantee against discoloration, though any exhaust that gets that hot is unsafe.
I have just one thing to say about that, Our stainless tips must be better than yours, because we have some vehicles with tips that are 7 years old, and yes they discolored to a yellow tint, and by cleaning them up immediately with the metal polish, all of the yellow tint was removed, and it never returned. It is not the metal that turns yellow, it is the polishing residue. If you claim the polish used at the factory have nothing to do with it, then you are ill informed. At these factories, the polishing compound they use is a type of oil.
I have successfully removed the yellow film, and I can testify that once it has been removed, I have never observed it to return.
And yes, I am fully aware that they have double walled tips, I stock a lot of them. And the double wall is not a guarantee against discoloration, though any exhaust that gets that hot is unsafe.
Gee every product you sell is better than anything else on the market
Take a torch to a piece of steel and watch the color change as the heat rises. A straw or Yellow color is the first and lowest temperature change in the color spectrum. A well seasoned tip WILL still retain some yellow or straw after polishing. Been there done that.
The tips I just took off of my truck were clean with brake cleaner on a regular basis to remove tar and will certainly remove any remaining film from the factory, and they still yellowed. That alone throws your resiudual film theory out the window.
You don't clean them with brake cleaner, you clean them with metal polish. By metal polish, I more specifically mean Flitz. I have never seen anything else come close to how well that stuff works.
And yes my products are among the best in the market, we don't carry the cheap stuff. If our products are not better than what are local competitors are selling, we would cease to exist. Our competitors are larger and have more buying power. We are specialists, and quality is one of our specialties. If it is not clearly better than what our competitors offer, we just don't carry it.
As far as our tips go, they are not the best, but they are excellent for the price. They are made with quality steel and tend to hold up well to road salt. Ours will discolor, but I have need personally seen one that could not be cleaned up with a good metal polish, and I have not seen one that was polished that turned yellow a second time.
You don't clean them with brake cleaner, you clean them with metal polish. By metal polish, I more specifically mean Flitz. I have never seen anything else come close to how well that stuff works.
And yes my products are among the best in the market, we don't carry the cheap stuff. If our products are not better than what are local competitors are selling, we would cease to exist. Our competitors are larger and have more buying power. We are specialists, and quality is one of our specialties. If it is not clearly better than what our competitors offer, we just don't carry it.
As far as our tips go, they are not the best, but they are excellent for the price. They are made with quality steel and tend to hold up well to road salt. Ours will discolor, but I have need personally seen one that could not be cleaned up with a good metal polish, and I have not seen one that was polished that turned yellow a second time.
You said "The discoloration isn't actually the metal changing color, but rather trace residue from the polishing process"
Brake cleaner will remove this residue even though I doubt it even exists considering polishing methods and polishing compounds used will vary. A combination of heat and road grime turns the tips yellow. Polishing with Flitz like you said though will help keep them looking better though.
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