Celica Header Idetification

**Boosted2.0** · 03-06-2006, 07:40 PM

There are 4 types of stock headers used on 7th Generation Celicas. 1 on the GT and 3 on the GTS. To clear up any confusion, here are they are plain as day. (in case anyone has a terminology bug up their butt, Header = exhaust manifold)

GT Header
The GT Header for the 1ZZ-FE remained unchanged from the introduction in the 2000 model year through the 2005 Model year:

Front of GT Header:

Back of GT Header:

GTS Header
The GTS header (2ZZ-GE engines) has been through 3 revisions. They were:
The Original Header - used from 2000 model year through January of 2003 Production
The Air Injection Blockoff Header - used from Feb 2003 production through April of 2003 Production
The Air Injection Header - definitely used in all of the 2004-2005 model year there MAY have been some used on late 2003 model year vehicles produced in May - July

Original GTS header - 2000-Early 2003
This header is no longer available as the part number has been superseeded by the Air Injection Blockoff header part number (which will bolt up to and work on a non air injection head)

Front of Original GTS Header:

Back of Original GTS Header:

GTS Air Blockoff Header - February 2003 - April 2003 Production
This Header MUST be used when using a new style Air Injection Head on a car not equipped with Air injection. This includes the 02/03 - 04/03 Production range as well as any vehicles that are repaired with a new cylinder head (new cylinder heads are now ONLY available with air injection and the non air injection head is no longer available.) Notice the bumps above the runners on the mating surface where the blockoffs have been added

Front of Air Injection Blockoff Header:

Back of Air Injection Blockoff Header:

GTS Air Injection Header
Starting in the 2004 Model year (or pissibly in late 2003 model year) the Air Injection System was added to improve cold start emissions by using an electric pump to blow fresh air into the exhaust stream to light off the catalyst more quickly. This system operates only when the vehicle is cold and remains dormant the rest of the time. This system is most easily identified by the large tube on the top of the header that wraps around the front of the timing chain cover

Link to the air injection thread: http://www.newcelica.org/forums/showthread.php?t=205889

Front of Air Injection Header:

Back of Air injection Header:

Air Injection Header on Engine (Matrix 2ZZ engine pictured)

**Blue Bomber** · 03-06-2006, 08:12 PM

Quote:

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**Smaay** · 03-06-2006, 09:46 PM

Yeah once you register, then you can see the forums

**Boosted2.0** · 03-07-2006, 12:50 AM

Moved the whole thread over here

Speed4TheNeed · 03-07-2006, 05:16 AM

Great info, this may come in handy.

celicajonz · 03-07-2006, 08:20 AM

NIIICE....dam air injection/egr crap!!!..the block off header looks good

Illusive · 03-07-2006, 08:27 AM

Quote:

Originally Posted by Blue Bomber

our webadmin is working out teh bug, we did not know it was there, last we knew you could post and see public forums without registering.

S|Lv3rBu||et · 03-07-2006, 09:13 AM

Pardon my lack of knowledge, but whats this 'air injection' buisness all about?

**Boosted2.0** · 03-07-2006, 09:50 AM

Quote:

Originally Posted by S|Lv3rBu||et

Pardon my lack of knowledge, but whats this 'air injection' buisness all about?

Its a new emissions system that was introduced at the end of 03. It has an electrical air pump that blows fresh air through the manifold into the head right into the path of the exhaust stream. It operates during cold starts when the air fuel ratio is very rich in order to help light off the catalytic converter faster and to prevent hydrocarbon loading of the cat. Its purely an emissions system - no performance benefit at all.

thebarber · 03-08-2006, 01:55 PM

how does the air injection hook up inside of the header itself? do you have any pics showing where the inlet to the header tube is? what considerations do you have to take when porting a header with air injection?

S|Lv3rBu||et · 03-08-2006, 02:47 PM

Quote:

Originally Posted by Boosted2.0

Quote:

Originally Posted by S|Lv3rBu||et

Pardon my lack of knowledge, but whats this 'air injection' buisness all about?

Its a new emissions system that was introduced at the end of 03...

Cool, I figured it would have to be emissions related. Thanks Boosted!

youngxlos · 03-08-2006, 08:38 PM

good info, should make this a sticky

thebarber · 03-08-2006, 09:16 PM

Quote:

how does the air injection hook up inside of the header itself? do you have any pics showing where the inlet to the header tube is? what considerations do you have to take when porting a header with air injection?

.

**Boosted2.0** · 03-08-2006, 09:37 PM

Jeez barber calm down bro - I will answer your questions

- Its my 10th Anniversary today so I've had other things to do

Anyways porting is pretty much the same, I just have to be careful to plug off the air injection holed while i'm porting so I don't get a bunch of metal debris in there.

As for teh rest of it, iIf you need to know faster than I am telling you just subscribe to http://techinfo.toyota.com for a day and check out the engine section of the 2004 Celica New Car Features book

**Boosted2.0** · 03-08-2006, 10:07 PM

Here are some clear pics of the Head and Manifold:

**Boosted2.0** · 03-08-2006, 10:10 PM

Link to the Air INjection thread:
http://www.newcelica.org/forums/showthread.php?t=205889

thebarber · 03-09-2006, 05:40 AM

heh heh, sorry to sound so impatient....just didnt want my question to get buried....

thanks a ton for the info though, i appreciate it

Matrix_Xrs03 · 03-13-2006, 08:17 PM

Quote:

Originally Posted by thebarber

heh heh, sorry to sound so impatient....just didnt want my question to get buried....

thanks a ton for the info though, i appreciate it

What a prick!

Boosted2.0, properly something you already know but here it is...

http://matrixowners.com/forums/Ported-02-G-T-S-Header-Into-My-03-X-R-S-t52376.html

Just so you know all '03 Matrix Xrs' do not have the air injection system, only '04 Xrs' and up

.

**Boosted2.0** · 03-13-2006, 08:34 PM

Yeah I saw that the other day when I verified the exhaust manifold parts numbers - the Matrix got the air injection after the Celica did by a couple months.

kortik · 01-09-2007, 12:24 PM

awesome. this totally clears things up for me

wacko604 · 01-19-2007, 09:03 PM

does the blocked off header work on the old style head 2000gts?

**Boosted2.0** · 01-19-2007, 09:20 PM

Quote:

Originally Posted by wacko604

does the blocked off header work on the old style head 2000gts?

I would imagine so - but I have not verified it personally.

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03-06-2006, 07:40 PM	#1
Boosted2.0 Moderator Join Date: Oct 2003 Location: Houston, TX Posts: 13,058 iTrader: (14)	Celica Header Idetification There are 4 types of stock headers used on 7th Generation Celicas. 1 on the GT and 3 on the GTS. To clear up any confusion, here are they are plain as day. (in case anyone has a terminology bug up their butt, Header = exhaust manifold) GT Header The GT Header for the 1ZZ-FE remained unchanged from the introduction in the 2000 model year through the 2005 Model year: Front of GT Header: Back of GT Header: GTS Header The GTS header (2ZZ-GE engines) has been through 3 revisions. They were: The Original Header - used from 2000 model year through January of 2003 Production The Air Injection Blockoff Header - used from Feb 2003 production through April of 2003 Production The Air Injection Header - definitely used in all of the 2004-2005 model year there MAY have been some used on late 2003 model year vehicles produced in May - July Original GTS header - 2000-Early 2003 This header is no longer available as the part number has been superseeded by the Air Injection Blockoff header part number (which will bolt up to and work on a non air injection head) Front of Original GTS Header: Back of Original GTS Header: GTS Air Blockoff Header - February 2003 - April 2003 Production This Header MUST be used when using a new style Air Injection Head on a car not equipped with Air injection. This includes the 02/03 - 04/03 Production range as well as any vehicles that are repaired with a new cylinder head (new cylinder heads are now ONLY available with air injection and the non air injection head is no longer available.) Notice the bumps above the runners on the mating surface where the blockoffs have been added Front of Air Injection Blockoff Header: Back of Air Injection Blockoff Header: GTS Air Injection Header Starting in the 2004 Model year (or pissibly in late 2003 model year) the Air Injection System was added to improve cold start emissions by using an electric pump to blow fresh air into the exhaust stream to light off the catalyst more quickly. This system operates only when the vehicle is cold and remains dormant the rest of the time. This system is most easily identified by the large tube on the top of the header that wraps around the front of the timing chain cover Link to the air injection thread: http://www.newcelica.org/forums/showthread.php?t=205889 Front of Air Injection Header: Back of Air injection Header: Air Injection Header on Engine (Matrix 2ZZ engine pictured) __________________ Now offering: 2ZZ Performance Intake Manifold \| 2ZZ Ported Headers \| 2ZZ Ported Cylinder Heads \| PowerFC Harnesses for DBW and Auto 2ZZ \| MR2 Spyder 2ZZ Swap Kits \| Engine Builds \| Turbo / Supercharger installation \| Tuning Last edited by Boosted2.0 : 03-08-2006 at 10:09 PM.

03-06-2006, 09:46 PM	#3
Smaay FIRE IN THE HOLE!!!! Join Date: Jun 2001 Location: Palmdale, RIP LACR Posts: 7,954 iTrader: (8)	Yeah once you register, then you can see the forums __________________ 2001 Celica GT-S 2ZZ-GTE 1997 Celica GT 5S-FTE 1997 Supra 6sp 2JZ-GTE 1990 Celica All-Trac 3S-GTE 1998 Dodge Ram Cummins Turbo Diesel Thats alot of BOOST!

03-07-2006, 12:50 AM	#4
Boosted2.0 Moderator Join Date: Oct 2003 Location: Houston, TX Posts: 13,058 iTrader: (14)	Moved the whole thread over here __________________ Now offering: 2ZZ Performance Intake Manifold \| 2ZZ Ported Headers \| 2ZZ Ported Cylinder Heads \| PowerFC Harnesses for DBW and Auto 2ZZ \| MR2 Spyder 2ZZ Swap Kits \| Engine Builds \| Turbo / Supercharger installation \| Tuning

03-07-2006, 05:16 AM	#5
Speed4TheNeed Project #1 All Motor Join Date: Jul 2004 Location: New Orleans, LA Posts: 4,470 iTrader: (20)	Great info, this may come in handy. __________________ Engine: MWR Stroker kit [Crower rods, Wiseco 12.5:1 pistons, Darton dry sleeves, Toyota 1zz crank], Piper stage II camshafts, Supertech valves, Eibach valve springs, Circuitworx O/P gear, Moroso oil pan, TRD RACE header, AEM CAI, TRD Kazuma exhaust, MWR main & rod bearing sets, ES motor mount inserts, Hondata IMG, UR crank, water pump, and alternator pullies, APEX'i PFC, TRD thermostat, Koyo Racing radiator, Blitz radiator hose, ARP 2ZZ complete stud set

03-07-2006, 09:13 AM	#8
S\|Lv3rBu\|\|et ...is 99.999% empty space Join Date: May 2002 Location: New Boston, NH. Posts: 9,598 iTrader: (7)	Pardon my lack of knowledge, but whats this 'air injection' buisness all about? __________________

03-08-2006, 01:55 PM	#10
thebarber blap! Join Date: May 2005 Location: kitchener, on Posts: 88 iTrader: (0)	how does the air injection hook up inside of the header itself? do you have any pics showing where the inlet to the header tube is? what considerations do you have to take when porting a header with air injection?

03-08-2006, 08:38 PM	#12
youngxlos Lift!!!!!!!!!!!!!!!! Join Date: Mar 2004 Location: Lorton, Virginia Posts: 5,472 iTrader: (35)	good info, should make this a sticky __________________ Built 2zz-ge T....V2.1 in the works

03-08-2006, 09:37 PM	#14
Boosted2.0 Moderator Join Date: Oct 2003 Location: Houston, TX Posts: 13,058 iTrader: (14)	Jeez barber calm down bro - I will answer your questions - Its my 10th Anniversary today so I've had other things to do Anyways porting is pretty much the same, I just have to be careful to plug off the air injection holed while i'm porting so I don't get a bunch of metal debris in there. As for teh rest of it, iIf you need to know faster than I am telling you just subscribe to http://techinfo.toyota.com for a day and check out the engine section of the 2004 Celica New Car Features book __________________ Now offering: 2ZZ Performance Intake Manifold \| 2ZZ Ported Headers \| 2ZZ Ported Cylinder Heads \| PowerFC Harnesses for DBW and Auto 2ZZ \| MR2 Spyder 2ZZ Swap Kits \| Engine Builds \| Turbo / Supercharger installation \| Tuning Last edited by Boosted2.0 : 03-08-2006 at 09:58 PM.

03-08-2006, 10:07 PM	#15
Boosted2.0 Moderator Join Date: Oct 2003 Location: Houston, TX Posts: 13,058 iTrader: (14)	Here are some clear pics of the Head and Manifold: __________________ Now offering: 2ZZ Performance Intake Manifold \| 2ZZ Ported Headers \| 2ZZ Ported Cylinder Heads \| PowerFC Harnesses for DBW and Auto 2ZZ \| MR2 Spyder 2ZZ Swap Kits \| Engine Builds \| Turbo / Supercharger installation \| Tuning

03-08-2006, 10:10 PM	#16
Boosted2.0 Moderator Join Date: Oct 2003 Location: Houston, TX Posts: 13,058 iTrader: (14)	Link to the Air INjection thread: http://www.newcelica.org/forums/showthread.php?t=205889 __________________ Now offering: 2ZZ Performance Intake Manifold \| 2ZZ Ported Headers \| 2ZZ Ported Cylinder Heads \| PowerFC Harnesses for DBW and Auto 2ZZ \| MR2 Spyder 2ZZ Swap Kits \| Engine Builds \| Turbo / Supercharger installation \| Tuning

03-09-2006, 05:40 AM	#17
thebarber blap! Join Date: May 2005 Location: kitchener, on Posts: 88 iTrader: (0)	heh heh, sorry to sound so impatient....just didnt want my question to get buried.... thanks a ton for the info though, i appreciate it

03-13-2006, 08:34 PM	#19
Boosted2.0 Moderator Join Date: Oct 2003 Location: Houston, TX Posts: 13,058 iTrader: (14)	Yeah I saw that the other day when I verified the exhaust manifold parts numbers - the Matrix got the air injection after the Celica did by a couple months. __________________ Now offering: 2ZZ Performance Intake Manifold \| 2ZZ Ported Headers \| 2ZZ Ported Cylinder Heads \| PowerFC Harnesses for DBW and Auto 2ZZ \| MR2 Spyder 2ZZ Swap Kits \| Engine Builds \| Turbo / Supercharger installation \| Tuning

01-09-2007, 12:24 PM	#20
kortik Registered User Join Date: Nov 2004 Location: Seattle,WA Posts: 2,658 iTrader: (2)	awesome. this totally clears things up for me __________________ 05 Matrix XRS Indigo Ink Pearl Progress RSB, TRD STB, Custom Borla 2.5" Exhaust, PPE header, Tein SS, TWM SS, Injen CAI, JDM helical LSD from spyder, RPS Max/Street, C-One Type R Flywheel, ES Motor Mounts, 18" Volks GT-S, HYDRA EMS

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01-19-2007, 09:03 PM	#21
wacko604 Registered User Join Date: Apr 2004 Location: vancouver Posts: 174 iTrader: (0)	does the blocked off header work on the old style head 2000gts? __________________ www.celicagarage.com

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