Welcome to the North American Subaru Impreza Owners Club Wednesday October 28, 2020
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Classifieds > Private 'Wanted' Classifieds

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 02-21-2017, 09:01 PM   #1
Crescent1101
Scooby Newbie
Member Sales Rating: (0)
 
Member#: 463252
Join Date: Feb 2017
Location: Tampa, FL
Vehicle:
2005 Saab 9-2x Aero
Black

Default Twinscroll Downpipe

So I found out the car I bought has a twinscroll VF37 set up. Looking for a downpipe and Up pipe.
* Registered users of the site do not see these ads.
Crescent1101 is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 02-21-2017, 10:22 PM   #2
Crescent1101
Scooby Newbie
Member Sales Rating: (0)
 
Member#: 463252
Join Date: Feb 2017
Location: Tampa, FL
Vehicle:
2005 Saab 9-2x Aero
Black

Default

So it looks like I have the JDM STI v9 VF37, twinscroll header, uppipe, downpipe setup.

What is the easiest way to increase power out of this setup?
Crescent1101 is offline   Reply With Quote
Old 02-22-2017, 07:07 AM   #3
Titter
Scooby Specialist
Member Sales Rating: (1)
 
Member#: 416107
Join Date: Mar 2015
Chapter/Region: International
Location: Ontario, Canada
Vehicle:
2002 WRX Wagon
EJ207 Spec C 4EAT

Default

same way as any other car except its more expensive because the parts are harder to find in some cases.

accessports dont work on JDM ecu's so you will need a custom tune.

its totally worth it tho. i would never change my twinscroll setup on my spec-c
Titter is offline   Reply With Quote
Old 02-22-2017, 11:14 AM   #4
Punk In Drublic
Scooby Specialist
Member Sales Rating: (3)
 
Member#: 232673
Join Date: Dec 2009
Chapter/Region: MAIC
Location: 717
Vehicle:
2002 wrx 6sp

Default

i agree, the quick spool-up is worth the loss of rumble. barely -- miss the ej noise =(
Punk In Drublic is offline   Reply With Quote
Old 02-22-2017, 03:27 PM   #5
D-Rodman
Scooby Specialist
Member Sales Rating: (40)
 
Member#: 110078
Join Date: Mar 2006
Chapter/Region: Tri-State
Location: Long Island N.Y.
Vehicle:
05 Saabaru JDM STi
Black Ver 7 VF48 6sp RA

Default

A stock style twin scroll turbo with higher flow capacity, id1000 injectors and walbro 255 pump for pump fuel. To go e85 you'd need a different setup.
D-Rodman is offline   Reply With Quote
Old 02-23-2017, 11:13 PM   #6
RallyLover
Scooby Newbie
Member Sales Rating: (0)
 
Member#: 463495
Join Date: Feb 2017
Default

More cowbell! And boost
RallyLover is offline   Reply With Quote
Old 02-23-2017, 11:53 PM   #7
Crescent1101
Scooby Newbie
Member Sales Rating: (0)
 
Member#: 463252
Join Date: Feb 2017
Location: Tampa, FL
Vehicle:
2005 Saab 9-2x Aero
Black

Default

I just have the EJ205 heads so I assume that I still have the USDM ECU. Car was tuned through a Cobb Access with custom tune. I do have the EJ207 block.
Crescent1101 is offline   Reply With Quote
Old 03-03-2017, 11:11 AM   #8
Crescent1101
Scooby Newbie
Member Sales Rating: (0)
 
Member#: 463252
Join Date: Feb 2017
Location: Tampa, FL
Vehicle:
2005 Saab 9-2x Aero
Black

Default

Anybody have a TS catless downpipe?
Crescent1101 is offline   Reply With Quote
Old 03-03-2017, 12:44 PM   #9
mrsaturn7085
Scooby Specialist
Member Sales Rating: (1)
 
Member#: 375462
Join Date: Dec 2013
Chapter/Region: NWIC
Location: Portland, OR
Vehicle:
2006 Impreza WRX STI
WR Blue

Default

There's plenty available, but you've gotta do some searching online with aftermarket part importers.

Tomei 193096 is one option, but you'll need to find someone that has a new-old-stock part sitting on a shelf. Usually takes me a day or two in situations like this, but often you'll get a killer price when you help someone clear off a shelf in a warehouse.
mrsaturn7085 is offline   Reply With Quote
Old 03-03-2017, 02:55 PM   #10
08OBS
Scooby Specialist
Member Sales Rating: (6)
 
Member#: 274397
Join Date: Feb 2011
Chapter/Region: Tri-State
Location: NNJ
Vehicle:
2005 WRX V9 207
2018 Colorado Duramax

Default

Quote:
Originally Posted by Crescent1101 View Post
Anybody have a TS catless downpipe?
I have one. It's an Invidia DP with a TS flange welded on. That is the best way to do it I think.
08OBS is offline   Reply With Quote
Old 03-03-2017, 05:24 PM   #11
Crescent1101
Scooby Newbie
Member Sales Rating: (0)
 
Member#: 463252
Join Date: Feb 2017
Location: Tampa, FL
Vehicle:
2005 Saab 9-2x Aero
Black

Default

Quote:
Originally Posted by 08OBS View Post
I have one. It's an Invidia DP with a TS flange welded on. That is the best way to do it I think.
Are you selling it? If not where did you get the stuff?
Crescent1101 is offline   Reply With Quote
Old 03-03-2017, 06:42 PM   #12
ether947
Scooby Newbie
Member Sales Rating: (20)
 
Member#: 297799
Join Date: Oct 2011
Chapter/Region: South East
Location: Knoxville, TN
Vehicle:
2003 WRX
EJ207 version 8

Default

I'm somewhat in the same boat, although I have a full v8/v9 setup. I've found a couple TS DPs out there.

Tomioka Racing sells one. Google the #PN for more venders.
http://www.tomiokaracing.com/index.p...7-wrx-sti.html

And I think Moore Performance still sells one too. I don't know how much they cost and I am afraid to ask. lol.
http://mooreperformanceparts.com/products/downpipes/
ether947 is offline   Reply With Quote
Old 03-03-2017, 06:49 PM   #13
jamal
Scooby Guru
Member Sales Rating: (7)
 
Member#: 71875
Join Date: Oct 2004
Location: Montana
Default

AVO might have one kicking around too. The tomioka seems to be readily available.
jamal is offline   Reply With Quote
Old 03-04-2017, 07:21 AM   #14
LEXX JDM
Former Vendor
Vendor Sales Rating: (8)
 
Member#: 449256
Join Date: Jun 2016
Default

We have a JDM Twin Scroll HKS Downpipe in stock and ready to ship. Its a bit discolored by the header wrap but otherwise still functional and solid.


LEXX JDM is offline   Reply With Quote
Old 03-04-2017, 01:34 PM   #15
08OBS
Scooby Specialist
Member Sales Rating: (6)
 
Member#: 274397
Join Date: Feb 2011
Chapter/Region: Tri-State
Location: NNJ
Vehicle:
2005 WRX V9 207
2018 Colorado Duramax

Default

Quote:
Originally Posted by Crescent1101 View Post
Are you selling it? If not where did you get the stuff?
I'm actually using it haha. I bought it from my friend who welded it together.

http://shopping.kinugawaturbo.com/tu...6vf37vf42.aspx

You can buy this flange and have it welded onto a down pipe.
08OBS is offline   Reply With Quote
Old 03-07-2017, 05:14 PM   #16
Crescent1101
Scooby Newbie
Member Sales Rating: (0)
 
Member#: 463252
Join Date: Feb 2017
Location: Tampa, FL
Vehicle:
2005 Saab 9-2x Aero
Black

Default

What is the difference between USDM and JDM length? I assume I have the JDM length stock downpipe. How do I get rid of the mid pipe with Cat?
Crescent1101 is offline   Reply With Quote
Old 02-05-2020, 08:22 PM   #17
LeakyFozzet
Scooby Newbie
Member Sales Rating: (0)
 
Member#: 511425
Join Date: Feb 2020
Default

Thread revival.
Has anyone on here thatís running a Tomioka TS catless dp on their vf37 experience boost creep? I know that thatís the first issue that comes up running a catless dp without ďsupporting modsĒ on the usdm 2.5ís but Iím having a hard time finding info about it for the 207 so Iíd appreciate anyone that would shine a light on this or point me in the right direction where itís been discussed.
LeakyFozzet is offline   Reply With Quote
Old 02-09-2020, 07:59 PM   #18
Fierysun
Scooby Guru
Member Sales Rating: (109)
 
Member#: 82745
Join Date: Mar 2005
Chapter/Region: SCIC
Location: So Cal
Vehicle:
2005 Subaru STI
2003 EJ207 S204 Wagon

Default

Quote:
Originally Posted by LeakyFozzet View Post
Thread revival.
Has anyone on here thatís running a Tomioka TS catless dp on their vf37 experience boost creep? I know that thatís the first issue that comes up running a catless dp without ďsupporting modsĒ on the usdm 2.5ís but Iím having a hard time finding info about it for the 207 so Iíd appreciate anyone that would shine a light on this or point me in the right direction where itís been discussed.
Boost creep is a common problem with catless DP as a whole. Some tuners can correct this in the tune, while others struggle with fixing it.
Fierysun is offline   Reply With Quote
Old 10-17-2020, 07:17 PM   #19
Ne0xc
Scooby Newbie
Member Sales Rating: (0)
 
Member#: 519470
Join Date: Oct 2020
Default

Quote:
Originally Posted by Crescent1101 View Post
What is the difference between USDM and JDM length? I assume I have the JDM length stock downpipe. How do I get rid of the mid pipe with Cat?
Anyone able to answer this question as it relates to a 2015+ JDM STI?

Last edited by Ne0xc; 10-17-2020 at 07:18 PM. Reason: Specifics.
Ne0xc is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

All times are GMT -4. The time now is 07:16 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2020 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.