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ASpec818 · 02-16-2003, 02:23 AM

i was getting the usdm type r headers put into my hatch along with a gsr motor. I know that the jdm has good performance gains but is there a difference between the usdm one? Will i be better off using the usdm type r headers of should i just use the stock gsr header? I will also be using the usdm itr cat.

Domeskilla · 02-16-2003, 04:54 AM

The ITR header is for a b16 head, you will have to make flange mods for it to fit a b18c1 head, IF it will even fit.

ekPhred · 02-16-2003, 07:35 AM

is there any kind of difference between the usdm itr header as opposed to the jdm one? i thought they both had a 2.5 collector? i could be wrong. enlighten me.

peace!

Domeskilla · 02-16-2003, 10:07 AM

Quote:

Originally posted by ekPhred@Feb 16 2003, 07:40 AM
is there any kind of difference between the usdm itr header as opposed to the jdm one? i thought they both had a 2.5 collector? i could be wrong. enlighten me.

peace!

USDM 2.0 collector

JDM 2.5 collector

ASpec818 · 02-16-2003, 09:34 PM

it bolts right up. the usdm type r headers fit the usdm gsr. my car is almost ready.

civicSiR1 · 02-18-2003, 03:01 PM

ITR has no IAB. I think it won't trigger a light. it bolts on like dick and pussy.

pills_PMD · 02-18-2003, 03:50 PM

no one is talking about the intake manifold . so iab codes wont be a problem

B16 · 02-18-2003, 04:28 PM

Quote:

Originally posted by Domeskilla@Feb 16 2003, 01:59 AM
The ITR header is for a b16 head, you will have to make flange mods for it to fit a b18c1 head, IF it will even fit.

wrong, it will bolt up, its the intake side you have to worry about on b18c1's, they exhaust manifolds are swappable.

SixtySecondAssassin · 02-18-2003, 04:47 PM

are usdm itr exhaust manifolds the same design as the jdm ones, besides the collector?

ekPhred · 02-18-2003, 06:16 PM

thanx for the knowledge domes!

E_SolSi · 02-19-2003, 12:10 AM

Quote:

Originally posted by SixtySecondAssassin@Feb 18 2003, 04:52 PM
are usdm itr exhaust manifolds the same design as the jdm ones, besides the collector?

no they are a 2 peice 4-2-1 just like all the other honda/acura i-4's... probly better than most but still not as good as the JDM ITR

ASpec818 · 02-20-2003, 04:53 AM

yep bolts up perfectly. all b-series fit all b-series (as i know now). i also got a usdm itr cat connected to the headers.

pissedoffsol · 02-20-2003, 04:54 AM

Quote:

Originally posted by ASpec818@Feb 20 2003, 04:58 AM
all b-series fit all b-series

yup.

Domeskilla · 02-20-2003, 05:01 AM

I said you might have a problem b/c when you go look at headers, you see a lot of them saying "does not fit GSR".. My bad tho.

pissedoffsol · 02-20-2003, 05:09 AM

only the intake side bolt patterns are different on b-series heads.

the only other probelm that may arise is that it won't clear the oil pan. a b16 is physically a shorter deck. if it cuts it close on a b16, it prob wont fit a gsr or ls

02-16-2003, 04:54 AM	#2
Domeskilla Senior Member Join Date: Oct 2002 Location: Fort Wayne, IN Posts: 2,948 iTrader: 0 / 0% Rep Power: 44	The ITR header is for a b16 head, you will have to make flange mods for it to fit a b18c1 head, IF it will even fit. __________________ For all your air suspension needs <a href=\'http://www.ultimatesporttruck.com\' target=\'_blank\'>Three Rivers Ultimate Sport Truck</a> There are many misconceptions of air ride and handling. A lot of bullshit spread, please PM if you wish to put air on your car/truck. You will get the 411. There ARE ppl who race with air ride, just have to know how to install it right.

02-16-2003, 07:35 AM	#3
ekPhred Senior Member Join Date: Nov 2002 Posts: 437 iTrader: 0 / 0% Rep Power: 19	is there any kind of difference between the usdm itr header as opposed to the jdm one? i thought they both had a 2.5 collector? i could be wrong. enlighten me. peace! __________________ For Sale thread... Buy now BITCHES! <a href=\'http://www.hondaswap.com/forums/index.php?act=ST&f=5&t=36885\' target=\'_blank\'>http://www.hondaswap.com/forums/index.php?act=ST&f=5&t=36885</a>

02-18-2003, 04:47 PM	#9
SixtySecondAssassin Senior Member Join Date: Sep 2002 Location: Austin, TX Posts: 1,071 iTrader: 0 / 0% Rep Power: 25	are usdm itr exhaust manifolds the same design as the jdm ones, besides the collector? __________________ .....deagle.....

02-18-2003, 06:16 PM	#10
ekPhred Senior Member Join Date: Nov 2002 Posts: 437 iTrader: 0 / 0% Rep Power: 19	thanx for the knowledge domes! __________________ For Sale thread... Buy now BITCHES! <a href=\'http://www.hondaswap.com/forums/index.php?act=ST&f=5&t=36885\' target=\'_blank\'>http://www.hondaswap.com/forums/index.php?act=ST&f=5&t=36885</a>

02-20-2003, 05:01 AM	#14
Domeskilla Senior Member Join Date: Oct 2002 Location: Fort Wayne, IN Posts: 2,948 iTrader: 0 / 0% Rep Power: 44	I said you might have a problem b/c when you go look at headers, you see a lot of them saying "does not fit GSR".. My bad tho. __________________ For all your air suspension needs <a href=\'http://www.ultimatesporttruck.com\' target=\'_blank\'>Three Rivers Ultimate Sport Truck</a> There are many misconceptions of air ride and handling. A lot of bullshit spread, please PM if you wish to put air on your car/truck. You will get the 411. There ARE ppl who race with air ride, just have to know how to install it right.


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02-16-2003, 02:23 AM	#1
ASpec818 Junior Member Join Date: Jan 2003 Posts: 16 iTrader: 0 / 0% Rep Power: 14	i was getting the usdm type r headers put into my hatch along with a gsr motor. I know that the jdm has good performance gains but is there a difference between the usdm one? Will i be better off using the usdm type r headers of should i just use the stock gsr header? I will also be using the usdm itr cat.

02-16-2003, 09:34 PM	#5
ASpec818 Junior Member Join Date: Jan 2003 Posts: 16 iTrader: 0 / 0% Rep Power: 14	it bolts right up. the usdm type r headers fit the usdm gsr. my car is almost ready.

02-18-2003, 03:01 PM	#6
civicSiR1 Senior Member Join Date: Feb 2003 Posts: 121 iTrader: 0 / 0% Rep Power: 15	ITR has no IAB. I think it won't trigger a light. it bolts on like dick and pussy.

02-18-2003, 03:50 PM	#7
pills_PMD Super Moderator Join Date: Sep 2002 Location: New Albany, OH Posts: 4,262 iTrader: 0 / 0% Ride: 01 is300, 05 s2000, 03 rx300 Rep Power: 57	no one is talking about the intake manifold . so iab codes wont be a problem

02-20-2003, 04:53 AM	#12
ASpec818 Junior Member Join Date: Jan 2003 Posts: 16 iTrader: 0 / 0% Rep Power: 14	yep bolts up perfectly. all b-series fit all b-series (as i know now). i also got a usdm itr cat connected to the headers.

02-20-2003, 05:09 AM	#15
pissedoffsol RETIRED Join Date: Sep 2002 Location: Retirement Home Age: 29 Posts: 49,951 iTrader: 2 / 100% Ride: Electric Scooter Blog Entries: 1 Rep Power: 531	only the intake side bolt patterns are different on b-series heads. the only other probelm that may arise is that it won't clear the oil pan. a b16 is physically a shorter deck. if it cuts it close on a b16, it prob wont fit a gsr or ls

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Usdm Type R Headers Any Good For The B18c1?