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Old 02-06-2004, 06:43 PM   #1
Charged Performance
Member#: 40645
Join Date: Jul 2003
Location: Jersey City, NJ
Default Beware when you are coating your exhaust pieces.

As many of you know we were the first to sell the Jet-Hot coated GT-Spec Header direct from our inventory with no waiting while gaining the agreement from GT-Spec that they would honor their full two year warranty on headers coated by their authorized dealers.

We went with Jet-Hot for a very specific reason - their JH 2000 coating works constantly and consistently in pre-turbo exhaust applications. It is rated to 2250*.

Over the past few months I have seen users and competitors advocate other coatings. 90% of them I contact about the 1550* temperatures seen in pre-turbo exhaust pieces have stated that their coatings are not sufficient. There are only two or three that I have contacted that are willing to say that their specs would be sufficient.

Be very careful an aluminum coating that looks very good and works great on NA applications but is rated at 1200* constant and 1500* intermitent will not last. The coating company itself replied to go elsewhere:

No, Sorry..... You need **** Coating in ****.
Anyone that wants us to forward the original email may contact me.

Just be careful out there and do your research - contact the coating company and ask them specifically will their coating work on pre-turbo exhaust pieces seeing extended periods of 1550* temperatures.

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Old 02-06-2004, 08:38 PM   #2
Scooby Newbie
Member#: 40470
Join Date: Jul 2003
Location: Batavia, IL
2002 WRX
WRB-Sedan (Sold)


I had my PDE uppipe coated with Jet-Hot 2000. I asked them the same question before sending my uppipe. Here is the response I got.

"I'm not concerned about the coating coming off and going into the turbo.
We've coated lots and lots of turbo parts and I have yet to have a
complaint on that...nobody asking for us to replace their turbo either."

Jet-Hot did good work, I am very pleased so far. Everything stays nice and cool.

Only time will tell.
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Old 02-07-2004, 12:47 AM   #3
Charged Performance
Member#: 40645
Join Date: Jul 2003
Location: Jersey City, NJ

You will be very happy, Jet-Hot 2000 will be there without being damaged it is well suited to pre-turbo environment. Their 2000 coating is time tested on this type of application.
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Old 02-09-2004, 12:15 PM   #4
Scooby Guru
Member#: 7327
Join Date: Jun 2001
Chapter/Region: NWIC
Location: Seattle, WA
2008 Mazdaspeed3
2006 Wrangler Sport


I agree 100% with this - you MUST go with an ultra-high temperature coating if the piece is going before the turbo.

You might as well go with JetHot2000 - it's relatively affordable, comes in three colors, and is a proven time-tested performer.
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Old 02-10-2004, 10:16 AM   #5
Scooby Specialist
Member#: 15001
Join Date: Feb 2002
Chapter/Region: NESIC
Location: Manchester CT or at any track
STi V8 Spec C Power
NESIC TrackH0z # 10


I have one recommendation - before having the pipes coated, put a bolt or plug in any threaded bung. I have a GT Spec header that's been Jet Hot coated (purchased that way) and am having a bugger of a time with the threads. EGT bung is 12mm 1.25 pitch - very uncommon size - hard to find a tap for. O2 is 18mm - same as spark plug, I have a thread chaser for that, but really need a tap to clear threads effectively as threads on O2 sensor are pretty soft.

Just FYI

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Old 02-10-2004, 10:34 AM   #6
Charged Performance
Member#: 40645
Join Date: Jul 2003
Location: Jersey City, NJ

I agree - I wish they came with plugs from the factory.

Unfortunately to save on shipping all over the place my orders go from the supplier to Jet-Hot then to my inventory.

An old used WRX EGT sensor can be used to chase the threads. Or a bolt from Pep Boys who does carry that size.

An old used O2 sensor from an exhaust shop (usually a few laying around) works for the O2 bung.

If they are not plugged when sent - the threads should be chased first for ease of installation. Though I did manage to get both fittings in with the installed parts the first time I did one.

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Old 02-10-2004, 11:03 AM   #7
Scooby Newbie
Member#: 48550
Join Date: Nov 2003
2004 ^^^whp ^^^wtq


Are deadbolts coatings up to par??
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Old 02-10-2004, 01:30 PM   #8
Charged Performance
Member#: 40645
Join Date: Jul 2003
Location: Jersey City, NJ

I contacted them about their P&P once last year and asked them about sending my exhaust housing to Jet-Hot. Their response wasn't very attractive relative to what I know my cost with JH is. So I decided to proceed on my own.

Less than a month later they started offering what they currently offer. I don't know whose coating it is or where they get it done so I have not been able to get the specs to find out.

That said - very few places are willing to coat a turbo exhaust housing internally. Jet-Hot for instance will only coat them externally.

I have not heard anything on the one they use. If I was to consider it again I would want to speak to their coater directly and ask the appropriate questions.
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