aftermarket wrx header, will it fit on 90-94 legacy turbo

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sliverumble
First Gear
Posts: 79
Joined: Sat May 29, 2010 7:02 pm

aftermarket wrx header, will it fit on 90-94 legacy turbo

Post by sliverumble »

I was just curious if an aftermarket header/uppipe made for an 02-06 wrx fit on a 92 legacy SS. Also are there flow benefits from this or is it a pointless mod?

Please advise,
Grant
92 SS
-TD04
-3" dp/ turbo back w/HKS can
-wrx/legacy susp combo
-Tribeca Front Sway
-whiteline rear sway
-wrx front brakes
-sti lip
-ver.4 sti tranny w/rear diff
-wrx tmic
-mbc @14.5-15psi w/HKS FCD
-Apexi turbo timer
PhyrraM
Fourth Gear
Posts: 1980
Joined: Thu Aug 11, 2005 4:34 pm
Location: Lake Elsinore, CA

Re: aftermarket wrx header, will it fit on 90-94 legacy turb

Post by PhyrraM »

Yes it will fit, but you need to plug the WRX O2 sensor hole.

A small gain on a stock motor, but really only worthy if the turbo-back is already done.
'93 Winestone SS Auto, '91 Pearl White SS.
'93 Pure White SS EJ20G slanty intercooled, SIDESWIPED! In stasis.
'94 FWD and '95 AWD Laguna Blue SVXs.
2017 Pure Red BRZ Limited w/Performance pack
sliverumble
First Gear
Posts: 79
Joined: Sat May 29, 2010 7:02 pm

Re: aftermarket wrx header, will it fit on 90-94 legacy turb

Post by sliverumble »

I have a 3" downpipe and exha.use to hks can. Currently running about 15psi
92 SS
-TD04
-3" dp/ turbo back w/HKS can
-wrx/legacy susp combo
-Tribeca Front Sway
-whiteline rear sway
-wrx front brakes
-sti lip
-ver.4 sti tranny w/rear diff
-wrx tmic
-mbc @14.5-15psi w/HKS FCD
-Apexi turbo timer
Legacy777
Site Admin
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Posts: 27884
Joined: Tue Oct 15, 2002 11:37 am
Location: Houston, Tx
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Re: aftermarket wrx header, will it fit on 90-94 legacy turb

Post by Legacy777 »

Just a note, people have noticed a decrease in turbo spool and torque when going to the larger aftermarket headers.
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT

If you need to get a hold of me please email me rather then pm
x2hawt4ux
First Gear
Posts: 170
Joined: Sat Jun 26, 2010 11:07 pm
Location: Bellingham, Wa

Re: aftermarket wrx header, will it fit on 90-94 legacy turb

Post by x2hawt4ux »

why would that happen?
92 turbo legacy: RWD W58 SWAP, td04, 3"tbe, mbc, fmic, wrx brakes/hubs, wrx seats, welded 4.11, fcd, drift steering wheel, Drifting Stickers
Deride
Second Gear
Posts: 313
Joined: Thu Jan 11, 2007 6:02 pm
Location: Duluth, MN

Re: aftermarket wrx header, will it fit on 90-94 legacy turb

Post by Deride »

Go blow air through a straw then try the same thing with a garden hose. Tell me how fast the air is moving on both.
2002 Impreza 2.0RS 6MT
2001 Impreza 2.5RS 5MT (winter beater)
1992 Jeep Cherokee
1994 SS 5MT RIP
1991 SS 5MT *SOLD*
1996 Legacy Outback 5MT *SOLD*
sliverumble
First Gear
Posts: 79
Joined: Sat May 29, 2010 7:02 pm

Re: aftermarket wrx header, will it fit on 90-94 legacy turb

Post by sliverumble »

Good to know, makes sense
92 SS
-TD04
-3" dp/ turbo back w/HKS can
-wrx/legacy susp combo
-Tribeca Front Sway
-whiteline rear sway
-wrx front brakes
-sti lip
-ver.4 sti tranny w/rear diff
-wrx tmic
-mbc @14.5-15psi w/HKS FCD
-Apexi turbo timer
s1d3way
In Neutral
Posts: 5
Joined: Mon Sep 19, 2011 11:37 pm

Re: aftermarket wrx header, will it fit on 90-94 legacy turb

Post by s1d3way »

is anything extra needed to put the wrx header on? like an up pipe or anything else?
Legacy777
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Site Admin
Posts: 27884
Joined: Tue Oct 15, 2002 11:37 am
Location: Houston, Tx
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Re: aftermarket wrx header, will it fit on 90-94 legacy turb

Post by Legacy777 »

It "should" bolt right up.
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT

If you need to get a hold of me please email me rather then pm
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