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Old 08-29-2014, 05:45 PM   #1
nxwrxfx
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Join Date: Jul 2005
Chapter/Region: TXIC
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02 EJ207 STi HTA68
05 EJ257 Baja 18G-XT

Default HELP! Baja Turbo Downpipe Question! Fitment! In a jam here!

Hey guys I need a quick cross-reference on a new downpipe for my 2005 Subaru Baja Turbo that i've in the process of overhauling...

What I wanted:
- Invidia catted bellmouth downpipe with spare O2 bung for AFR/tuning
(apparently they don't make such a version according to the vendor i'm working with.... )

Backup Choice:
- Invidia catted DIVORCED wastegate downpipe with spare O2 bung.
- Will be using a 18G-XT turbo... hoping the internal wastegate clears the divorced divider plate...

MY BIGGEST QUESTION:
Will the Invidia DIVORCED wastegate downpipe clear that weird bracket that our Baja's have that is located directly behind the downpipe, along the firewall behind the downpipe?

Urgent responses requested as I was hoping to order this downpipe sometime this weekend at the latest... THANK YOU!
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Old 08-29-2014, 06:12 PM   #2
Baja_Gernaut
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I have a titek downpipe installed and i faced the same dilemma when installed my DP. I just removed that bracket you mentioned and installed a strut bar to reinforce the engine bay. I know it is a bit controversial removing the bracket but I have been driving my Baja daily for 4 yrs and there is no difference in feel. I am about to remove this downpipe and install the same divorced downpipe you're going to install.
I think the invidia is going to clear that bracket because the cat looks smaller than the one I have installed. The cat in the Titek is huge and it forced me to remove the bracket.
If you decide to remove your bracket, you should install the strut bar just to reinforce that area. We are lucky because other subaru models, brackets are welded to the frame.


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Old 08-29-2014, 07:34 PM   #3
nxwrxfx
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Baja_Gernaut you are da man!

Okay... I may take a chance and go with the divorced wastegate Invidia downpipe then as my window for ordering parts is shrinking rapidly now.

Hopefully it clears, but if not i'm only running a OEM STi TMIC so i can nab a front strut bar for cheap.

I really appreciated the response!
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Old 08-29-2014, 07:58 PM   #4
nxwrxfx
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Hey guys what about this downpipe from Turbo XS?
http://turboxs.com/shop/exhaust/359-...downpipe-.html

The only worry that I have here is the "massive" bellmouth... But the catted portion is dropped down lower in the piping so... maybe will fit?
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Old 08-29-2014, 08:13 PM   #5
jrigby
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Go EWG and get the HKS flat flanged downpipe. :-)
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Old 08-29-2014, 08:30 PM   #6
nxwrxfx
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I wish I could go ewg... but it's the daily and that's too loud for me. I thiiiink the turboxs one will fit though. Found some non-nasioc threads that are leaning towards "yes"

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Old 08-29-2014, 09:34 PM   #7
jrigby
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Awesome, let us know if it works. The EWG is great for a daily, you conserve gas because you try to not let the waste gate open. Think of it like an alarm.
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Old 08-30-2014, 06:05 PM   #8
nxwrxfx
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Yeah i'll definitely report back on fitment/compatibility and with the full build after it's done. About 2 more weeks out but things are coming together now pretty quickly.

And lol never thought of using the EWG that way before! Still considering a setup like that on the bugeye next time I re-dyno. Not in the near future yet though.
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Old 09-24-2014, 09:27 PM   #9
rexworx
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Do you have a 5spd for auto tranny? Did you install the invidia downpipe yet?

Im working on a 04-05 turbo baja with a automatic tranny. What downpipe fits? 02-07 wrx,sti? 05+ LGT? I want to put a Invidia bellmouth cattless downpipe on it but am hearing conflicting info.

Thank you,

Ian,

Quote:
Originally Posted by Baja_Gernaut View Post
I have a titek downpipe installed and i faced the same dilemma when installed my DP. I just removed that bracket you mentioned and installed a strut bar to reinforce the engine bay. I know it is a bit controversial removing the bracket but I have been driving my Baja daily for 4 yrs and there is no difference in feel. I am about to remove this downpipe and install the same divorced downpipe you're going to install.
I think the invidia is going to clear that bracket because the cat looks smaller than the one I have installed. The cat in the Titek is huge and it forced me to remove the bracket.
If you decide to remove your bracket, you should install the strut bar just to reinforce that area. We are lucky because other subaru models, brackets are welded to the frame.


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Old 09-24-2014, 09:39 PM   #10
Baja_Gernaut
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rumble black

Default HELP! Baja Turbo Downpipe Question! Fitment! In a jam here!

I have a 5 speed. I purchased a catted invidia divorced DP and I am about to install it with the vf48. My friend is installing it this weekend so I will have a better answer but I do have a titek 02 07 for STI installed but i am not sure if it was only for 5 speed. I purchased it from SubieSleeper along with his exhaust a couple of years ago. If I can get ahold of him, I will let you know.


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Last edited by Baja_Gernaut; 09-24-2014 at 09:48 PM.
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Old 09-24-2014, 09:48 PM   #11
Baja_Gernaut
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Bump


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Old 09-24-2014, 11:16 PM   #12
BBoley24
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I simply grinded a 2x2 inch cut out of the gusset... 5 minutes and the rub is gone....

That's what she said.
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Old 09-29-2014, 08:25 PM   #13
nxwrxfx
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Still awaiting fitment confirmation of my downpipe (turbo xs v2 bellmouth & catted).

Head repairs were lagging behind schedule a bit but looking forward to buttoning her back up in the coming weeks! If we have a Baja Parts Compatibility Thread i'd be happy to compile of list of all of the parts i'm about to try... it's going to be a doozie!
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Old 10-06-2014, 11:33 AM   #14
nxwrxfx
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Just poppin' back in to update this.

Baja Turbo owners:
The Turbo XS (Ver2) catted bellmouth downpipe (with dual O2 bungs) FITS PERFECTLY and requires no modification to the firewall "brace bar" to fit properly.
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Old 10-08-2014, 08:20 PM   #15
234herk
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Quote:
Originally Posted by nxwrxfx View Post
Just poppin' back in to update this.

Baja Turbo owners:
The Turbo XS (Ver2) catted bellmouth downpipe (with dual O2 bungs) FITS PERFECTLY and requires no modification to the firewall "brace bar" to fit properly.
That's good to know, thanks for posting. My V2 came in yesterday and I wondered if I was going to have any fitment issues.

Another thing that fits the Baja Turbo is the TOMEI header for WRX / Sti. It fits with no modification. It gets a little close to the oil pan but there is clearance.
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Old 05-27-2016, 07:31 PM   #16
ebo03
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Baja Turbo ABP

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Quote:
Originally Posted by nxwrxfx View Post
Just poppin' back in to update this.

Baja Turbo owners:
The Turbo XS (Ver2) catted bellmouth downpipe (with dual O2 bungs) FITS PERFECTLY and requires no modification to the firewall "brace bar" to fit properly.
02-07 or 08+ fitment? Is there a difference between the two?
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Old 05-30-2016, 03:33 PM   #17
nxwrxfx
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2002-2007 fitment, and specifically the "Version 2" of the TurboXS catted downpipe. Fits like a glove and required no cutting/trimming of the firewall brace to fit.
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Old 06-02-2016, 03:35 PM   #18
ebo03
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Anybody know about fitment on this Grimmspeed catted downpipe? Divorced wastegate and cat is down on the exhaust near the flange for the catback.

http://www.grimmspeed.com/downpipe-c...7-wrx-sti-fxt/
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Old 10-03-2019, 02:24 PM   #19
Philh2o
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Default 06 Baja Turbo automatic downpipe

Iím looking for downpipe divorced waste gate. Did the Invdia work for you with no bracket removal issues? Iíve located one part number ending in SW1DPN. Also looking at shift up racing pn ending JPDP15. Anyone know if these will work with no modifications?
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Old 10-08-2019, 09:56 PM   #20
Philh2o
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[quote=Philh2o;46139587]Iím looking for downpipe divorced waste gate. Did the Invdia work for you with no bracket removal issues? Iíve located one part number ending in SW1DPN.Anyone know if this will work with no modifications Next I need help finding a TUNER. Anyone have a file on how to custom tune? Nothing available from Turbo XS or Cobb
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Old 10-22-2019, 12:03 AM   #21
Patrikman
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[quote=Philh2o;46143423]
Quote:
Originally Posted by Philh2o View Post
Iím looking for downpipe divorced waste gate. Did the Invdia work for you with no bracket removal issues? Iíve located one part number ending in SW1DPN.Anyone know if this will work with no modifications Next I need help finding a TUNER. Anyone have a file on how to custom tune? Nothing available from Turbo XS or Cobb
If you do an ECU swap with an '04 STI you can use a Cobb I think. Otherwise you are stuck with a custom tune but I could be wrong.
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Old 10-22-2019, 06:40 AM   #22
ebo03
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Baja Turbo ABP

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Quote:
Originally Posted by Philh2o View Post
Iím looking for downpipe divorced waste gate. Did the Invdia work for you with no bracket removal issues? Iíve located one part number ending in SW1DPN. Also looking at shift up racing pn ending JPDP15. Anyone know if these will work with no modifications?
The downpipe should work being that its catless. Only a few catted downpipes clear the unique Baja brace. Grimmspeed and TurboXS (with interchangeable catless race pipe and catted pipe) both fit well. I've had both on my Baja. They fit b/c the cat is further down near the catback connection compared to most other catted offerings where the cat is closer to the turbo.

You can swap 04 FXT (manual trans only) or 04 STI ECU if you want to use Cobb AP for tuning. Cobb never supported the Baja ECUs.

Open Source is also an option if you want to keep the factory ECU. It's a little harder to find tuners willing to Open Source tune now. Cobb has additional features and is much quicker so many tuners are Cobb exclusive at this point.
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