JHM Headers

**Cruedog** · 03-15-2014 06:07 PM

Just ordered!!!!

**bioluminescent** · 03-15-2014 06:09 PM

Ha nice. What long of a wait did they quote?

**bioluminescent** · 03-15-2014 06:11 PM

Or.. What kind of/ how long of

**Cruedog** · 03-15-2014 06:21 PM

No time quote yet, ordered it just now from the website.
Taking off the Milltek and bolting headers to F.I. Exhaust.

**BCsniper** · 03-15-2014 06:33 PM

awesome. I'd love to hear them once you get them.

**QIKRNU** · 03-15-2014 08:32 PM

They do amazing things for the torque curve, not to mention the sound.

**WolfS4** · 03-16-2014 06:34 AM

Very nice. I hope to do some same one day.

**p3u** · 03-16-2014 09:41 AM

Can JHM chime in on the wait time these days. I'm getting ready for some myself.

**S4Bennett** · 03-16-2014 12:09 PM

The next question is thermal barrier coating, wrap, or both?

**QIKRNU** · 03-16-2014 01:22 PM

Originally Posted by S4Bennett

The next question is thermal barrier coating, wrap, or both?

I did both; Jet Hot and wrap.

**Cruedog** · 03-16-2014 02:11 PM

I have the wrap, which is all I am planning on doing....should I take it another step?

**QIKRNU** · 03-16-2014 05:04 PM

Originally Posted by Cruedog

I have the wrap, which is all I am planning on doing....should I take it another step?

I thought it was a good idea. You may feel differently. It's a matter of personal opinion. I will probably bequeath my Avant.

**Cruedog** · 03-17-2014 11:39 AM

I have a time quote of 2-4 months from JHM.

**Jake@JHM** · 03-17-2014 11:42 AM

Originally Posted by Cruedog

I have a time quote of 2-4 months from JHM.

Boom

Thanks again for your order!

**Whatset** · 03-18-2014 09:02 AM

Originally Posted by QIKRNU

I did both; Jet Hot and wrap.

Don't both those methods do the opposite of each other. Jet Hot moves heat down the system to the exhaust end while the wrap traps it in place?

Wrap also traps water and can lead to corrosion. If I was doing something this invasive Id spend the extra cash and get them coated.

**RX-Heven** · 03-18-2014 09:50 AM

Originally Posted by Whatset

Don't both those methods do the opposite of each other. Jet Hot moves heat down the system to the exhaust end while the wrap traps it in place?

Wrap also traps water and can lead to corrosion. If I was doing something this invasive Id spend the extra cash and get them coated.

They both accomplish the same thing by providing a thermal barrier to keep heat energy where it belongs, in the exhaust system by preventing it from escaping into the engine bay.
Corrosion will not be a problem when wrapped around decent stainless of 304 or better, especially if it has been Jet-hot/ceramic coated beforehand.

**SquiddyB6S4** · 03-19-2014 03:53 AM

Originally Posted by Whatset

Don't both those methods do the opposite of each other. Jet Hot moves heat down the system to the exhaust end while the wrap traps it in place?

Wrap also traps water and can lead to corrosion. If I was doing something this invasive Id spend the extra cash and get them coated.

Originally Posted by RX-Heven

They both accomplish the same thing by providing a thermal barrier to keep heat energy where it belongs, in the exhaust system by preventing it from escaping into the engine bay.
Corrosion will not be a problem when wrapped around decent stainless of 304 or better, especially if it has been Jet-hot/ceramic coated beforehand.

Indeed. Not only that, but header wrap should be sealed once wrapped and finished. Mild steel will rust like crazy when wrapped, while stainless will last and last.

**Whatset** · 03-19-2014 08:14 AM

Hey Squid! Hope all is well.

Was thinking of you the other day - helped a buddy install an LSD in his B7. It was stuffed in a B6 housing and looked just like the ones you made.

Thanks RX Heven - (I do still think I'm kinda right. One moves heat (thermophobic) the other shields but traps)

**SquiddyB6S4** · 03-22-2014 04:06 AM

Long time no talk, buddy. I will give you a call this evening because we need to catch up.

I have said it before and I have said it many, many times - tires are the best mod for any car, but the next best mod is always an LSD, if your car didn't come with one. It was true on FWD, it was true on RWD, and now I find it's still true on AWD. Not sure I'd want one in the front of the AWD car, but it definitely needed one in the back.

Was this a B7 RS4? I thought the B7 S4 6MT would be perfect interchange with the B6 S4 6MT, and the 6AT's would be the same as each other as well but not to the 6MT. I never had a B7 to test on, unfortunately. As far as I know, the B7 had the same gearing, so the diff itself should have been dimensionally the same. No telling with OEMs though. Each day is another opportunity to save a buck on design, suppliers, shipping, and assembly, or just make our lives more confusing.

**Whatset** · 03-24-2014 08:35 AM

It was an RS4 - a lovely white one.

Totally agree on the tire comment - they make all the other systems shine (or expose weaknesses)

For sure dude, it has been a while - hit me up when you get a chance.

**Cruedog** · 04-15-2014 07:50 AM

My Headers are being delivered TODAY!!!! That is exactly 1 month and 2 days since ordering. WAY quicker than the 2-4 month time quote, and way faster than expected!!!!

**BCsniper** · 04-15-2014 08:17 AM

oh snap......you putting them in yourself?

**JimmyBones** · 04-15-2014 09:20 AM

Nice!

I highly recommend getting the heaters ceramic coated and/or wrapped with header wrap.

**Cruedog** · 04-15-2014 09:45 AM

My local shop 129Euro in Maryville, TN will be installing the headers as well as Fast Intentions exhaust, timing chain service, PCV, and hopefully a JHM tune. I have header wrap.

**BCsniper** · 04-15-2014 09:53 AM

wow, you're getting a whole lot done at once. Especially if you get the tune at the same time then it will feel like a whole new car. I guess you'll be buying the cable and having them do the tune DIY? If there was a shop around here that could flash me the JHM tune then I would probably go ahead and get it. Whenever it all your work gets finished I'd love to come up there and get a ride sometime this summer, or maybe check it out at SoWo.

**Cruedog** · 04-15-2014 10:04 AM

They already have a cable. They currently do APR tunes. They are trying to get hooked up with JHM now. Hopefully Jake can hook us up!!

**BCsniper** · 04-15-2014 10:09 AM

....seriously we need a JHM dealer over in this area. I'm really surprised they haven't gotten with anyone in the ATL area. I was wondering if APR would do the flash at SoWo, but I'm sure that'll get a no if I ask.

I think I might call that 129Euro and see what they'd charge me to do a flash if I buy the tune from JHM. Hopefully it would be less than if I bought the cable myself.

**Cruedog** · 04-15-2014 10:47 AM

I agree...the closest place for me now is Lexington KY. But like I said, the boys at 129Euro are trying to get hooked up with JHM. The APR and JHM tune use the same server, so why not??

**Kookie** · 04-15-2014 11:39 AM

Is ANYONE out there running the headers with race cats and passing smog?

**BCsniper** · 04-15-2014 12:24 PM

talk to member "10MPG" he is basically full-on JHM setup and has/had their SC and headers. Him being in the Bay Area of CA I'm guessing he has to go through the same emissions as the rest of CA. I'm pretty sure he just used the race cats to pass the test.