Dynatech Headers

[H2Much]

Thought I would roll under my truck and snap a pick of my recently installed Dynatech longtubes and the high flow cats. Ceramic coats done were Nitride coatings.

http://i1183.photobucket.com/albums/x477/pimpjiz/P7220229.jpg

http://i1183.photobucket.com/albums/x477/pimpjiz/P7220230.jpg

[NJ H2]

NICE!! :perfect10s:

I just ordered the Dynatechs and took delivery a few days ago. Paid $679.00 w/free delivery for Headers alone.
AutoAnything told me it would bolt up to my OEM Cats. Took it in for installation today but no dice ... I need the HF Cats and X Pipe $500.00 more!!

[pdxrealtor]

Eye candy for sure....

can't wait to get mine installed!

[H2Much]

You will want the high flow cats anyways, all that extra exhaust coming down needs a quicker way out. You wouldn't get the full effect of them without the HF's. Excited to see what you guys think when you get them, hopefully you will like!

[citiboy]

what's the hp and torque gain for these setup...any rubbing issues? this is on my to do list :D

[LoJac963]

wow those look awesome with the ceramic coating! Jealousy sucks lol!

[IRA51]

NICE

[tyler1bo]

I soooooo hate you right now! Jelly

[MARKCORE]

How about a wheel well picture? :D

[H2Much]

HP is Dyno'd on Dynatech's site at 25 HP for the stock setup, so I imagine that having a CAI and chip would only add to that number overall. Oh yeah, here is a wheel well pic- couldn't see too much too well which is why I didn't post it with the others...

http://i1183.photobucket.com/albums/x477/pimpjiz/P8080231.jpg

[pdxrealtor]

Oh man, what little I can see I like. Makes me want to get mine done. Do you know if you needed o2 extenders?

I see you have a super chip cortex. Is that for headers cai etc..?

[MARKCORE]

YES! Thanks for posting that, like looking at porn! Can't wait to get mine installed! :beerchug:

[[__--MUD--__]]

HP is Dyno'd on Dynatech's site at 25 HP for the stock setup, so I imagine that having a CAI and chip would only add to that number overall. Oh yeah, here is a wheel well pic- couldn't see too much too well which is why I didn't post it with the others...

http://i1183.photobucket.com/albums/x477/pimpjiz/P8080231.jpg

I'm assuming this pic is during the install as the egr isn't hooked up or plugged.

[charles06]

I've had the headers and high-flow cats installed for several years. Very good product.

[H2Much]

Yah, so the cortex was something I got after the bigger tires. It helped, but the regear is what really picked thigns up. The chip just helps things run a little sharper, figured opening up the intake and exhaust would help.

On the O2's, I just got the high flow cats from Dynatech which came with the extenders. I am pretty sure you need them so that the O2's can still reach. Also, no on the EGR, don't have it hooked up in this pic; speaking of which, I didn't know the H2 had an EGR.... Does it even have one?

[pdxrealtor]

My buddy swears it has an EGR but says it just doesn't run through the header, but through the back or front of the head.

You've been running yours without a plug On the header???

[H2Much]

Yah, I have... haven't really notcied anything weird about how it runs either. I will have to see of I can get something to plug it, see if it makes a difference. I will talk to my mech and see what he says about it, they do quite a bit of performance stuff like exhaust and supercharge, so he should know what's up. I may even call Dynatech and ask them too; got me all thinking about it now.

[pdxrealtor]

I can't believe you haven't noticed the exhaust leak sound... I'm about to plug mine now.

What did you do with your plug wires on the driver side? I have two plug wires that are up against the header, no way to move them out of the way, and they're burning up.

Do you have a pic of your driver side header?

Did your motor throw any codes?

[tomp]

These headers come with an Allen head plug already installed in the EGR port, instead of a bolt on plate like most other headers, thus the reason it looks like there is not one there. Trust me, it comes installed already. It screws into the hole.

[pdxrealtor]

That makes sense in H2s case, but mine are OBX headers and there is no plug installed or included. The hole isn't even threaded.

I was going to thread it and plug it, but it seemed the wall was too thin. Guess I could have tapped the hole in the flange.

I ended up getting a piece of steel. My kit came with a gasket.

[pdxrealtor]

H2Much-- I'd still like to see what your driver side header looks like, when you have a moment. ;)

[tomp]

PDX, I was referring to the Dynatechs having the Allen plug on the egr port, not the OBX headers.

I can see why you are having heat problems on your plug wires on drivers side. It's because those pipes turn upwards on the drivers side. The Dynatechs don't do this - all 4 pipes turn downward and slant back.

[pdxrealtor]

PDX, I was referring to the Dynatechs having the Allen plug on the egr port, not the OBX headers.

I can see why you are having heat problems on your plug wires on drivers side. It's because those pipes turn upwards on the drivers side. The Dynatechs don't do this - all 4 pipes turn downward and slant back.

Thanks for that info... I kind of thought so since I never heard anyone mention it before.

It's really a simple fix with heat tape and/or plug wire protector. I hope these OBX headers hold up as good as the dynatechs.

Fitment wise they were tits.

[H2Much]

I'll get a pic snapped tomorrow for you when the sun is up...

[H2Much]

Ok, here is a pic of my headers and plugs. Sorry about the delay, yesterday was a little rainy.
http://i1183.photobucket.com/albums/x477/pimpjiz/P8260233.jpg

http://i1183.photobucket.com/albums/x477/pimpjiz/P8260234.jpg

Haven't really had any problems with heat yet on the plug wires, maybe the ceramic coat is helping?

[pdxrealtor]

Goddamn they're close, but for sure a diff design on that 3rd and maybe 4th pipe.

Hey thanks for the pics. It will help the community see a detrimental difference.

Glad your plugs aren't burning up.

The others diff I saw was dynatech cats have a nice heat shield aroun them. OBX don't.

I'll link to this post in mine so people who are shipping can shop that much better.

**edit** another nice comparison..... Mine aren't ceramic coated and are already colored rainbow. Yours, which are coated, look new and will look new for some time.

I've had ceramic coated..... They hold up well in the engine bay. :thumbsup:

[H2Much]

Yah, I agree, don't know why they built them with the plugs so dang close- yours are ridiculously close too. Oh well, I guess that is all they had to work with since GM didn't plan on making any mods for their stuff at the time, good old GM man. Makes you wonder why anyone there thought that nobody would ever want to customize those trucks at some point, especially with those weak engines.

If I had the money, I would throw down on an LSX 454 and replace all of that crap under the hood. Makes me sick sometimes seeing some of the cheap stuff in there, reminds me of the Jeep I used to have, lol.