What's the OEM exhaust made of? - TCCoA Forums
 
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post #1 of 13 (permalink) Old 05-25-2004, 07:32 PM Thread Starter
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What's the OEM exhaust made of?

My car's 7 years old with 130,000 miles on it and it still has the original pipes, that look to be in real good condition. What did Ford make these out of that they have lasted so long? I've been lucky to get 3 or 4 years out of replacement exhaust in the past.
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post #2 of 13 (permalink) Old 05-25-2004, 07:46 PM
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Stainless, its just a lower grade that still gets surface rust.

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post #3 of 13 (permalink) Old 05-25-2004, 08:25 PM
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I havr 212,500 miles on my original exhaust system, and it is still looking fine.

Wish I could say the same for the y-shaped three-cat unit.

On my third one. Dan Newman's price with discount is $1400 just for that piece.

You can always get an aftermarket set-up, of course.

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post #4 of 13 (permalink) Old 05-25-2004, 10:48 PM
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Type 409 stainless steel is typically used by the OEMs for exhaust these days. It is a ferritic grade, so that's why it still develops the red oxide, but it lasts much longer than plain carbon steel exhaust tubing. Most folks are more familiar with Type 304 stainless steel (such as used in kitchen sinks, appliances and utensils), which is an austenitic grade and keeps it's shiny appearance better.
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post #5 of 13 (permalink) Old 05-25-2004, 11:42 PM
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Here is a ? for you guys. Why do the OEM exhaust systems last so much longer than aftermarket ones, thats what i dont get.
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post #6 of 13 (permalink) Old 05-26-2004, 12:54 AM
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Quote:
Originally posted by welder4956
Type 409 stainless steel is typically used by the OEMs for exhaust these days. It is a ferritic grade, so that's why it still develops the red oxide, but it lasts much longer than plain carbon steel exhaust tubing. Most folks are more familiar with Type 304 stainless steel (such as used in kitchen sinks, appliances and utensils), which is an austenitic grade and keeps it's shiny appearance better.


There is your answer..


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post #7 of 13 (permalink) Old 05-26-2004, 03:55 PM
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What kind of piping do shops usually use, does it rust like oem?

Fear the insanely fast Thunderbird with SECRET mods!
Secret not meaning Fram filter and removed air silencer.
Yeah…definitely not

Future mods
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Last edited by Will3799; 05-26-2004 at 04:58 PM.
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post #8 of 13 (permalink) Old 05-26-2004, 07:49 PM
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The factory cats back is made of chineseium, and the cat pipe is made of a blend of irreplacium and unobtainium. Hope this clears things up!

-Erik

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post #9 of 13 (permalink) Old 05-26-2004, 11:21 PM
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post #10 of 13 (permalink) Old 05-27-2004, 12:24 AM
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Quote:
Originally posted by Josh
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post #11 of 13 (permalink) Old 05-27-2004, 11:47 AM
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Aftermarket CATS are $322.00 for the 4.6 + shipping
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post #12 of 13 (permalink) Old 05-27-2004, 11:47 AM
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Quote:
Originally posted by Will3799
What kind of piping do shops usually use, does it rust like oem?
Yes I am quoting myself but does anyone know the answer?

Fear the insanely fast Thunderbird with SECRET mods!
Secret not meaning Fram filter and removed air silencer.
Yeah…definitely not

Future mods
5-Speed
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post #13 of 13 (permalink) Old 05-27-2004, 01:10 PM
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Quote:
Originally posted by Will3799


Yes I am quoting myself but does anyone know the answer?
They usually use aluminized plain steel, that's whay they tend to not last as long.

-Miller

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Denim Blue 97 Cougar Sport - Purchased Nov. 14 - 22k miles and now the daily driver, staying stock
Purple 95LX Supercharged 4.6PI Parting Out
Black '11 VW Jetta Sportwagen TDI 6-speed - Fun but efficient
SOLDWhite '03 Crown Vic P71
Pearl 96 Lx - Parted and gone, some parts still available
SOLD2006 Mazdaspeed6
SOLD1998 Escort ZX2
RIPBlue 97 LX - MANY PARTS STILL AVAILABLE
RIP My Black 95 LX 4.6
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