USDM wrx exhaust on JDM ej20G motor

scobaru · 03-16-2004, 05:31 PM

so I'm looking for a turbo back on for my jdm EJ20G in my GC8. I've heard the TD05's are monted differently so would a USDM turbo back work fully? since the JDM Ej20 is obd II it wont have a 2nd 02 and the usdm wrx down pipes do have a hole should that just get welded shut? I do have an sensor or an exhaust temp sensor that goes in to the jdm down pipe soo I'd have to cut a new hole for that? and I'd have to shorten the down pipe 2 inches correct? anything else? isn't there a exhaust hanger that doesnt line up or is on the other side on the GC8 body style when using usdm wrx exhaust? which one doesn't line up? that could just be cut and weld to the other side correct?

anything else need to be modifyed? I plain on having my boss do the welding

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Structure828 · 03-16-2004, 06:13 PM

Get something custom made, you get more power...its custom, it sounds better, and looks better...and sometimes its cheaper.

scobaru · 03-16-2004, 07:58 PM

I looked in to it and it ended up being like 950. the turbo back set up i'm looking into I've heard before on a USDM wrx and I like it. the custom one theres no real R&D that goes in to them its more or less well this looks like it'll work or well we gotta bend it here beause it'll get in teh way of this

Kostamojen · 03-16-2004, 09:50 PM

The USDM exhaust will work. The difference with the TD05 isnt the exhaust mounting location, its the intake.

scobaru · 03-16-2004, 10:58 PM

okay what part of the cat back doesn't mount right?

Matt Monson · 03-16-2004, 11:06 PM

hhhmmm,
The EJ20G sitting in my garage has 2 o2 sensors...

Homemade WRX · 03-16-2004, 11:43 PM

you could use the catback and all so long as you had a custom downpipe made that meets up with the other piping. That is probably the easiest solution.
Take it easy, Micah

Kostamojen · 03-17-2004, 12:18 AM

The full turbo back will bolt up and fit right from what I know, sans the one muffler hangar (that will either need to be cut off, or moved IE re-welded)

As for the extra 02 sensor hole, if you have to plug it just use an old 02 sensor, or find a bolt that will fit it. Plugging it up with a weld might not be the best idea.

scobaru · 03-17-2004, 12:50 AM

oh okay cool I guess I can use my EJ18's o2

Matt Monson is your ej20G an european motor? I think they had the 2nd 02

Puckaveli · 03-17-2004, 11:32 AM

My JDM EJ20G has one 02(header) and an EGT(downpipe). The UK diagrams show only one 02 and no EGT.

I just bought a Scoobysport turboback for mine so it better fit.

Jaxx · 03-18-2004, 11:56 AM

Quote:

Originally posted by scobaru
oh okay cool I guess I can use my EJ18's o2

that is exactly what i did

i zip tied the connector to the downpipe/tranny mount to keep it from flappin' around

03-16-2004, 05:31 PM	#1
scobaru Scooby Guru Member#: 31345 Join Date: Dec 2002 Chapter/Region: MWSOC Location: Wisconsin Vehicle: 05 LGT, GC8, NA blue, white, blue	USDM wrx exhaust on JDM ej20G motor so I'm looking for a turbo back on for my jdm EJ20G in my GC8. I've heard the TD05's are monted differently so would a USDM turbo back work fully? since the JDM Ej20 is obd II it wont have a 2nd 02 and the usdm wrx down pipes do have a hole should that just get welded shut? I do have an sensor or an exhaust temp sensor that goes in to the jdm down pipe soo I'd have to cut a new hole for that? and I'd have to shorten the down pipe 2 inches correct? anything else? isn't there a exhaust hanger that doesnt line up or is on the other side on the GC8 body style when using usdm wrx exhaust? which one doesn't line up? that could just be cut and weld to the other side correct? anything else need to be modifyed? I plain on having my boss do the welding * Registered users of the site do not see these ads.

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03-16-2004, 06:13 PM	#2
Structure828 * Banned * Member#: 50488 Join Date: Dec 2003 Location: Orlando, FL. Vehicle: 1999 GC8 ej20g! Black	Get something custom made, you get more power...its custom, it sounds better, and looks better...and sometimes its cheaper.

03-16-2004, 07:58 PM	#3
scobaru Scooby Guru Member#: 31345 Join Date: Dec 2002 Chapter/Region: MWSOC Location: Wisconsin Vehicle: 05 LGT, GC8, NA blue, white, blue	I looked in to it and it ended up being like 950. the turbo back set up i'm looking into I've heard before on a USDM wrx and I like it. the custom one theres no real R&D that goes in to them its more or less well this looks like it'll work or well we gotta bend it here beause it'll get in teh way of this

03-16-2004, 09:50 PM	#4
Kostamojen Scooby Guru Member#: 2272 Join Date: Sep 2000 Chapter/Region: BAIC Location: haha XD Vehicle: 95 L AWD LIFTED!!! 1970 Subaru FF-1 Coupe	The USDM exhaust will work. The difference with the TD05 isnt the exhaust mounting location, its the intake.

03-16-2004, 10:58 PM	#5
scobaru Scooby Guru Member#: 31345 Join Date: Dec 2002 Chapter/Region: MWSOC Location: Wisconsin Vehicle: 05 LGT, GC8, NA blue, white, blue	okay what part of the cat back doesn't mount right?

03-16-2004, 11:06 PM	#6
Matt Monson Scooby Guru Member#: 832 Join Date: Jan 2000 Chapter/Region: RMIC Location: Teh Ghetto Garage, CO Vehicle: 99 2.5RS, '85 911 '73 914 and 2012 BRZ	hhhmmm, The EJ20G sitting in my garage has 2 o2 sensors...

03-16-2004, 11:43 PM	#7
Homemade WRX Scooby Guru Member#: 33782 Join Date: Mar 2003 Chapter/Region: MAIC Location: 3MI Racing LLC Vehicle: 96 bastard child search FIRST, then PM!!!	you could use the catback and all so long as you had a custom downpipe made that meets up with the other piping. That is probably the easiest solution. Take it easy, Micah

03-17-2004, 12:18 AM	#8
Kostamojen Scooby Guru Member#: 2272 Join Date: Sep 2000 Chapter/Region: BAIC Location: haha XD Vehicle: 95 L AWD LIFTED!!! 1970 Subaru FF-1 Coupe	The full turbo back will bolt up and fit right from what I know, sans the one muffler hangar (that will either need to be cut off, or moved IE re-welded) As for the extra 02 sensor hole, if you have to plug it just use an old 02 sensor, or find a bolt that will fit it. Plugging it up with a weld might not be the best idea.

03-17-2004, 12:50 AM	#9
scobaru Scooby Guru Member#: 31345 Join Date: Dec 2002 Chapter/Region: MWSOC Location: Wisconsin Vehicle: 05 LGT, GC8, NA blue, white, blue	oh okay cool I guess I can use my EJ18's o2 Matt Monson is your ej20G an european motor? I think they had the 2nd 02

03-17-2004, 11:32 AM	#10
Puckaveli Scooby Specialist Member#: 1518 Join Date: May 2000 Location: Stow, OH Vehicle: 00 2.5RS Silver	My JDM EJ20G has one 02(header) and an EGT(downpipe). The UK diagrams show only one 02 and no EGT. I just bought a Scoobysport turboback for mine so it better fit.