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07-23-2012, 04:27 AM
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Hummer Professional
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Join Date: Sep 2008
Location: Utah
Posts: 293
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Dynatech Headers
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.
__________________
Sweet looking H2 with not enough mods (2003 Pewter H2, 20" Rockstars, 40"x15.5" Toyo MT's, E&G Extended Flares, Full body tube steel exoskeleton, 5" Skyjacker lift, Amp Research steps, Gobi Roofrack and ladders, Smoked LED's, AFe CAI, Dynatech long tubes and cats, Magnaflow exhaust, Stock tune, 4.88 gears, Chrome Grenade Shifter, interior blacked out, rear captains chairs, Solar Power!!)
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07-24-2012, 01:45 AM
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Hummer Authority
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Join Date: Apr 2003
Location: Las Vegas
Posts: 1,819
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Re: Dynatech Headers
NICE!! 
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!!
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... Teh black won't get you back
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07-24-2012, 04:41 AM
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Hummer Expert
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Join Date: Feb 2008
Location: Portland, OR
Posts: 948
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Re: Dynatech Headers
Eye candy for sure....
can't wait to get mine installed!
__________________
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2006 HUMMER H2
MOOG Front End
Diablo InTune w/DiabLew Tune
Cognito Steering Support
OBX LT Headers
Air Raid Filter w/Tube
External Trans Cooler -Radiator Bypass
Corvette Servo
Rancho 9000 Adjustable Shocks-
Rancho Steering Stabilizer
20" Chrome Fuel Hostage - Cooper ST Maxx
Slotted Rotors/Ceramic pads/Steel Lines
Viper Smart Start
iPod/Video Interface
HID Head and Fog Lights
Optima Red Top w/ Priority Start Cut Off Mod
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07-24-2012, 03:03 PM
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Hummer Professional
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Join Date: Sep 2008
Location: Utah
Posts: 293
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Re: Dynatech Headers
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!
__________________
Sweet looking H2 with not enough mods (2003 Pewter H2, 20" Rockstars, 40"x15.5" Toyo MT's, E&G Extended Flares, Full body tube steel exoskeleton, 5" Skyjacker lift, Amp Research steps, Gobi Roofrack and ladders, Smoked LED's, AFe CAI, Dynatech long tubes and cats, Magnaflow exhaust, Stock tune, 4.88 gears, Chrome Grenade Shifter, interior blacked out, rear captains chairs, Solar Power!!)
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07-25-2012, 01:27 AM
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Hummer Veteran
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Join Date: May 2009
Location: Delson, Quebec
Posts: 115
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Re: Dynatech Headers
what's the hp and torque gain for these setup...any rubbing issues? this is on my to do list 
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2008 Hummer H2 Luxury Edition
Toyo MT 38x13.50x18 on Rockstar. Green keys. 2" rear spacers. 1" bodylift. Cognito UCA, steering bracket, front stab links. Bilstein 5100 shocks & steering stab. Moog inner/outer TR, pitman, idler arm & bracket with remote zerk. E&G Classics fender flares. ARP 434-1301 ex. man. stud kit. Airaid perf. air filter. Crown brake lines. Warn PowerPlant HD. Rubberduck UCP. Gobi Ranger roof rack. DDM Tuning 55W HID Hi/Lo headlights. Hella fogs. Evans waterless coolant.
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07-25-2012, 04:44 AM
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Hummer Expert
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Join Date: Sep 2011
Location: Surprise, AZ
Posts: 717
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Re: Dynatech Headers
wow those look awesome with the ceramic coating! Jealousy sucks lol!
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07-25-2012, 09:31 PM
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Hummer Expert
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Join Date: May 2007
Location: PHOENIX AZ
Posts: 681
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Re: Dynatech Headers
NICE
__________________
A government big enough to
give you everything you want, is
strong enough to take everything
you have.
-- Thomas Jefferson
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07-26-2012, 01:06 AM
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Hummer Expert
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Join Date: Feb 2011
Posts: 620
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Re: Dynatech Headers
I soooooo hate you right now! Jelly
__________________
'08 Birch White SUT
20X10" BMF S.O.T.A Wheels
38X13.5X20 Toyo Open Country M/T
AMP Research Steps
10" JL Audio sub w/ box and amp
Truxxx Lift 2.5" F-1.5" R
4" Rancho Lift
Corsa Sport Cat Back Exhaust
K&N Cold Air Intake
Spare Removed
RealWheels Eliminator Kit w/o hooks
Defenderworx hooks
Body matched grille
Ford Raptor 6.2L emblem
GS Creations Plexi-glass tail light and front turn tint
RealWheels Oversized Black Hood Handles
Recon Smoked Cab lights
More...
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08-06-2012, 09:52 AM
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Hummer Veteran
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Join Date: Dec 2010
Location: Columbus, OHIO
Posts: 134
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Re: Dynatech Headers
How about a wheel well picture? |
08-09-2012, 02:52 AM
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Hummer Professional
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Join Date: Sep 2008
Location: Utah
Posts: 293
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Re: Dynatech Headers
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...
__________________
Sweet looking H2 with not enough mods (2003 Pewter H2, 20" Rockstars, 40"x15.5" Toyo MT's, E&G Extended Flares, Full body tube steel exoskeleton, 5" Skyjacker lift, Amp Research steps, Gobi Roofrack and ladders, Smoked LED's, AFe CAI, Dynatech long tubes and cats, Magnaflow exhaust, Stock tune, 4.88 gears, Chrome Grenade Shifter, interior blacked out, rear captains chairs, Solar Power!!)
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08-09-2012, 03:52 AM
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Hummer Expert
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Join Date: Feb 2008
Location: Portland, OR
Posts: 948
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Re: Dynatech Headers
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..?
__________________
_____________________________________
2006 HUMMER H2
MOOG Front End
Diablo InTune w/DiabLew Tune
Cognito Steering Support
OBX LT Headers
Air Raid Filter w/Tube
External Trans Cooler -Radiator Bypass
Corvette Servo
Rancho 9000 Adjustable Shocks-
Rancho Steering Stabilizer
20" Chrome Fuel Hostage - Cooper ST Maxx
Slotted Rotors/Ceramic pads/Steel Lines
Viper Smart Start
iPod/Video Interface
HID Head and Fog Lights
Optima Red Top w/ Priority Start Cut Off Mod
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08-09-2012, 04:56 AM
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Hummer Veteran
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Join Date: Dec 2010
Location: Columbus, OHIO
Posts: 134
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Re: Dynatech Headers
YES! Thanks for posting that, like looking at porn! Can't wait to get mine installed!  |
08-09-2012, 07:03 PM
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![[__--MUD--__]'s Avatar](image.php?u=8286&dateline=1300594796) |
Hummer Expert
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Join Date: Dec 2007
Posts: 705
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Re: Dynatech Headers
Quote:
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Originally Posted by 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...
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I'm assuming this pic is during the install as the egr isn't hooked up or plugged. |
08-12-2012, 09:56 PM
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Hummer Professional
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Join Date: Nov 2009
Location: Windermere, FL
Posts: 297
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Re: Dynatech Headers
I've had the headers and high-flow cats installed for several years. Very good product.
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White 2005 SUT, Lifted 7.5" via Fabtech/custom work, Fabtech Dirt Logic 2.25 shocks, 40x15.5x22 Toyo's, black 22" Fuel wheels, 4.88 gears, Dynatech long tube headers, Magnaflow exhaust, Air-raid intake, Superchips programmer, Edlebrock panhard bar, Cognito UCA's, Kryptonite tie rods, Cognito pitman/idlar arm gussets, Hotchkis swaybars and trailing arms, Amp Research steps, E&G fender flares, PIAA SMR's, smoked roof lights (bulbs removed), black suede headliner, 13" JL's under seat
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08-19-2012, 04:41 AM
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Hummer Professional
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Join Date: Sep 2008
Location: Utah
Posts: 293
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Re: Dynatech Headers
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?
__________________
Sweet looking H2 with not enough mods (2003 Pewter H2, 20" Rockstars, 40"x15.5" Toyo MT's, E&G Extended Flares, Full body tube steel exoskeleton, 5" Skyjacker lift, Amp Research steps, Gobi Roofrack and ladders, Smoked LED's, AFe CAI, Dynatech long tubes and cats, Magnaflow exhaust, Stock tune, 4.88 gears, Chrome Grenade Shifter, interior blacked out, rear captains chairs, Solar Power!!)
Last edited by H2Much : 08-19-2012 at 04:43 AM.
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08-19-2012, 08:33 AM
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Hummer Expert
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Join Date: Feb 2008
Location: Portland, OR
Posts: 948
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Re: Dynatech Headers
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???
__________________
_____________________________________
2006 HUMMER H2
MOOG Front End
Diablo InTune w/DiabLew Tune
Cognito Steering Support
OBX LT Headers
Air Raid Filter w/Tube
External Trans Cooler -Radiator Bypass
Corvette Servo
Rancho 9000 Adjustable Shocks-
Rancho Steering Stabilizer
20" Chrome Fuel Hostage - Cooper ST Maxx
Slotted Rotors/Ceramic pads/Steel Lines
Viper Smart Start
iPod/Video Interface
HID Head and Fog Lights
Optima Red Top w/ Priority Start Cut Off Mod
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08-19-2012, 11:38 PM
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Hummer Professional
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Join Date: Sep 2008
Location: Utah
Posts: 293
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Re: Dynatech Headers
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.
__________________
Sweet looking H2 with not enough mods (2003 Pewter H2, 20" Rockstars, 40"x15.5" Toyo MT's, E&G Extended Flares, Full body tube steel exoskeleton, 5" Skyjacker lift, Amp Research steps, Gobi Roofrack and ladders, Smoked LED's, AFe CAI, Dynatech long tubes and cats, Magnaflow exhaust, Stock tune, 4.88 gears, Chrome Grenade Shifter, interior blacked out, rear captains chairs, Solar Power!!)
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08-20-2012, 12:03 AM
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Hummer Expert
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Join Date: Feb 2008
Location: Portland, OR
Posts: 948
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Re: Dynatech Headers
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?
__________________
_____________________________________
2006 HUMMER H2
MOOG Front End
Diablo InTune w/DiabLew Tune
Cognito Steering Support
OBX LT Headers
Air Raid Filter w/Tube
External Trans Cooler -Radiator Bypass
Corvette Servo
Rancho 9000 Adjustable Shocks-
Rancho Steering Stabilizer
20" Chrome Fuel Hostage - Cooper ST Maxx
Slotted Rotors/Ceramic pads/Steel Lines
Viper Smart Start
iPod/Video Interface
HID Head and Fog Lights
Optima Red Top w/ Priority Start Cut Off Mod
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08-20-2012, 12:50 AM
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Hummer Authority
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Join Date: Sep 2005
Location: Texas
Posts: 1,795
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Re: Dynatech Headers
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.
__________________
H2 SUT 4.56 Gears, Front Locker, Cognito Pitman/Idler kit & Idler Pivot Kit, Fab Tech Tie Rods, True Tech Trailing Arms, Edelbrock Panhard Rod, PML rear Diff & Tranny Pans, Corsa Exhaust, Dynatech LT Headers, Diablo Predator Programmer, Volant CAI, Warn 9500 Winch, Escort 8500x50 & ZR3 Laser Shifter, Delta Light Bar, Rancho Steering Stabilizer & Bilstein Shocks, Ron Davis Radiator, PowerSlot Rotors, Hawk Brake Pads
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08-20-2012, 12:58 AM
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Hummer Expert
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Join Date: Feb 2008
Location: Portland, OR
Posts: 948
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Re: Dynatech Headers
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.
__________________
_____________________________________
2006 HUMMER H2
MOOG Front End
Diablo InTune w/DiabLew Tune
Cognito Steering Support
OBX LT Headers
Air Raid Filter w/Tube
External Trans Cooler -Radiator Bypass
Corvette Servo
Rancho 9000 Adjustable Shocks-
Rancho Steering Stabilizer
20" Chrome Fuel Hostage - Cooper ST Maxx
Slotted Rotors/Ceramic pads/Steel Lines
Viper Smart Start
iPod/Video Interface
HID Head and Fog Lights
Optima Red Top w/ Priority Start Cut Off Mod
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