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Old 04-23-2003, 09:07 PM   #1
sszyma
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Default wrapping da header

Ok my borla header is arriving on Friday and I have searched all post relating to the header CEL and wrapping it also. My question is has anyone ever had a problem when they wrapped the header? I bought the thermo-tec graphite wrap. It seems to me it would be better to wrap it because the outside will not have such a significant delta T. Anyone with experience wrapping their header? i know it should get rid of the CEL though.
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Old 04-23-2003, 09:51 PM   #2
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Old 04-23-2003, 11:32 PM   #3
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Wrapping may corrode and crack your headers. Get a code reader to clear the inevitable CEL instead.

Jim
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Old 04-24-2003, 12:28 AM   #4
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no problems in my experience, but remember to wear gloves....fiberglass splinters are not fun.
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Old 04-24-2003, 03:41 AM   #5
Andrew Bacon
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There is some discussion on another forum about this with some pics:

http://www.rs25.com/Forums/showthrea...ight=thermotec

I've been using thermotec for a couple of months with no problems so far.

Subaru used insulation on the stock manifold to keep things cooler down there and keep the cats hot!
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Old 04-24-2003, 08:39 AM   #6
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Read through all the posted information/threads.

Personally after talking with someone that had a borla header, and have it crack because he wrapped it......I would not wrap it.

If you want to do anything, get it jet coated.
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Old 04-24-2003, 09:08 AM   #7
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I put mine on the other day, and no CEL yet. I din't notice much of a butt dyno gain though. Hopefully when I do away with the cats or buy a high flow cat it will be more noticeable. Then on to a clutch, flywheel, and some cams if I ever get my amended return refund, I'm starting to give up hope on it
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Old 04-24-2003, 10:04 AM   #8
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If you wrap it, it will crack and wrapped headers are not covered by the warranty.

If you get a CEL get a MIL eliminator or a mechanical CEL fix.
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Old 04-24-2003, 10:20 AM   #9
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I've read that many people complain about the header cracking w/o even wrapping it. So maybe if it cracked when wrapped it would have cracked anyway. I just can't see wrap ruining the header. Its only a 4 cylinder not a big-block or anything.
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Old 04-24-2003, 11:20 AM   #10
subarumantoo
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Hey, I wrapped my Borla about three weeks ago and so far so good. Here is the link, with pictures...
http://rs25.com/Forums/showthread.php?threadid=7661
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Old 04-24-2003, 12:08 PM   #11
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Quote:
Originally posted by subarumantoo
Hey, I wrapped my Borla about three weeks ago and so far so good. Here is the link, with pictures...
http://rs25.com/Forums/showthread.php?threadid=7661
read my post in that thread... header wrap doesn't just crack them... it can be much worse...
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Old 04-24-2003, 03:01 PM   #12
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Quote:
Originally posted by legacy777
[B....Personally after talking with someone that had a borla header, and have it crack because he wrapped it......[/b]
Was it a Gen. 4 header? Curious, thanks.
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Old 04-24-2003, 06:42 PM   #13
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Quote:
Originally posted by Andrew Bacon


Was it a Gen. 4 header? Curious, thanks.
No I don't think so.
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Old 04-25-2003, 06:43 PM   #14
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Mine are wrapped, always were wrapped (ie previous owner), and I drive alot. Had them on since like last fall, probably put 20k on them. No evil has occured. And it keeps the CEL away. And they're Gen 3's (oooooh).

If they crack it's likely because the turds at Borla couldn't produce a nice TIG weld to save their lives. I had an EGT and A/F bung put in the headers at work by a certified welder and he makes the Borla welds look like they were done by a blind monkey with the crack withdrawl shakes.

Bob
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Old 04-25-2003, 07:18 PM   #15
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I had read that they don't crack, they just corrode, like a very bad version of rust. You wont see the damage under the wrap, until it starts to perforate. It may last 1 to 3 years instead of 7 to 10 or longer. Several shops here advised me against wrapping; racers do it, destroy their headers in a season, and get a new one from their sponsor

So as suggested here, if CEL is the only reason for wrapping, instead get it coated, move your sensors, get a MIL eliminator, or keep a code reader handy ( if CELs are infrequent enough)

Jim
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Old 04-25-2003, 10:38 PM   #16
Andrew Bacon
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Quote:
Originally posted by Bob O
.....he makes the Borla welds look like they were done by a blind monkey with the crack withdrawl shakes.....

Bob
Didn't you know? Borla has been using crack addicted monkeys in the factory since 1992.

The wrap broke on a spot on my header and it is unraveling!
It is only about 2-3 months old. Maybe I streched it too tight and thermal expansion broke it? I dunno. Pisser.
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Old 04-28-2003, 06:44 PM   #17
Andrew Bacon
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I spoke to Alex Borla at the mini SEMA show in LA this weekend.
He said he would replace a failed header regardless of what has been wrapped on it, no problems, no questions.

Borla can be reached at 805-986-8600

Last edited by Andrew Bacon; 04-28-2003 at 06:56 PM.
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