Discuss your mods, maintenance, and any other technical information/questions Tue, 09 Jun 2026 12:25:46 +0000 Tue, 09 Jun 2026 12:25:46 +0000 MNSubaru https://mnsubaru.com/forums/modifications-and-maintenance.24/ Mon, 01 Jun 2026 14:07:39 +0000 https://mnsubaru.com/threads/obsoletes-2008-wrx-maintenance-mods.55645/ https://mnsubaru.com/threads/obsoletes-2008-wrx-maintenance-mods.55645/ invalid@example.com (obsolete) obsolete So I bought @predavore 's car. Awesome car, awesome dude. I figured I should post a thread here instead of continuing to annoy him with texts about it. Do people still post forum threads? Do forums even still exist?

Anyway, because I picked up the car on Christmas Eve, my wife did the bow thing as a...

obsolete's 2008 WRX maintenance & mods]]> 97 Tue, 31 Mar 2026 01:43:49 +0000 https://mnsubaru.com/threads/front-diff-fluid-15-forester-xt.55663/ https://mnsubaru.com/threads/front-diff-fluid-15-forester-xt.55663/ invalid@example.com (predavore) predavore
Here are the quick steps.
1. unplug the air filter hose on the pass side just above and behind the axle.
2. pull the overfill plug (14mm on bottom of diff)
3. pull the diff drain plug (t70)
4. drain and clean area
5. put new gasket on drain plug and reinstall (~50-55lbs)
6. use a combination of 5/16" fuel line and a gear oil transfer pump inside the air filter line from step 1
7. pump about 1.5 qts or until the diff overflow...

Front Diff Fluid '15 Forester XT]]> 2 Thu, 19 Mar 2026 14:05:32 +0000 https://mnsubaru.com/threads/good-tires-for-winter.55649/ https://mnsubaru.com/threads/good-tires-for-winter.55649/ invalid@example.com (ikpthegame) ikpthegame 23 Mon, 09 Mar 2026 03:32:03 +0000 https://mnsubaru.com/threads/2015-forester-speaker-upgrade.55659/ https://mnsubaru.com/threads/2015-forester-speaker-upgrade.55659/ invalid@example.com (predavore) predavore 5 Sat, 28 Feb 2026 06:00:39 +0000 https://mnsubaru.com/threads/tpms.55657/ https://mnsubaru.com/threads/tpms.55657/ invalid@example.com (Superglue) Superglue
Winter tires currently on.
Blizzaks built in 2019 so ~7 years old, assuming the TPMS are that old too.
All have TPMS
Kenwood head unit reads the TPMS through the OBDII port.

Have all of them copied from the ECU using an autel TS508WF

The driver side rear keeps popping up as no signal.
When I scan and re-read with the autel it reads totally fine and resets but then after driving for 15 min the TPMS light comes...

TPMS]]> 2 Thu, 26 Feb 2026 17:00:51 +0000 https://mnsubaru.com/threads/audiophiles-opinion-needed.55655/ https://mnsubaru.com/threads/audiophiles-opinion-needed.55655/ invalid@example.com (predavore) predavore
The ask... Looking for advice on what speakers to use. Not looking to run an...

Audiophile's opinion needed]]> 8 Sat, 21 Feb 2026 17:15:03 +0000 https://mnsubaru.com/threads/2009-outback-center-carrier-bearing-replacement.55653/ https://mnsubaru.com/threads/2009-outback-center-carrier-bearing-replacement.55653/ invalid@example.com (Krazylegz1485) Krazylegz1485
Wife's car has been making a few funky noises as of late and my first assumption was the center carrier bearing, based on where the sound was coming out from under the car. Finally crawled underneath tonight and kinda confirmed my suspicions.

In the past couple weeks I've been researching replacement driveshafts, replacing "non serviceable" u joints (thanks to a pretty thorough write-up on here from the past), and have only really found the driveshaft sold as a...

2009 Outback center carrier bearing replacement.]]> 11 Thu, 12 Feb 2026 15:34:02 +0000 https://mnsubaru.com/threads/blouch-dominator.55651/ https://mnsubaru.com/threads/blouch-dominator.55651/ invalid@example.com (Superglue) Superglue
curious if anyone on here has a blouch dominator installed in their wrx/sti?

curious if you could take me for a ride in it?

I’m considering the upgrade and would love some insight before making the jump.
Already have supporting mods.
Gs top mount
1050’s
AEM 320
E85
Gs ebcs

I’d throw you a 100$ or buy you lunch/dinner.

bonus points if it’s an 08-14
Double bonus points if it’s an sti]]> 7 Wed, 11 Feb 2026 23:01:08 +0000 https://mnsubaru.com/threads/wrx-sti-hatchback-auto-pop.55647/ https://mnsubaru.com/threads/wrx-sti-hatchback-auto-pop.55647/ invalid@example.com (Superglue) Superglue
I know that the sedan has this feature and it's likely receiving different information from the BCM (Body Control Module) or Body Integrated Unit, and reprogramming those seems a bit out of the question here.

I'd (very obviously) prefer that this works separately from the unlock function.

I.e. I don't want the hatch to pop open when I unlock all the doors....

WRX/STI hatchback auto pop]]> 12 Tue, 13 Jan 2026 17:46:18 +0000 https://mnsubaru.com/threads/led-front-emblem.55643/ https://mnsubaru.com/threads/led-front-emblem.55643/ invalid@example.com (Superglue) Superglue
I’m curious if anyone’s installed one.

I’m very curious if they’re the same size as the GR chasis, and if I could install one on my sti.

from what I’ve read they’re the same size but the housing is different and the mounting system is totally different.
I guess I’m curious if with mild modification I could install it.

have a feeling lots of folks have done badge replacements, so I’m looking at you. ]]> 1 Sun, 14 Dec 2025 14:09:58 +0000 https://mnsubaru.com/threads/needing-a-hole-drilled-and-tapped-on-turbo.55641/ https://mnsubaru.com/threads/needing-a-hole-drilled-and-tapped-on-turbo.55641/ invalid@example.com (ikpthegame) ikpthegame 9 Thu, 20 Nov 2025 17:19:43 +0000 https://mnsubaru.com/threads/18-forester-xt-intake-mods.55638/ https://mnsubaru.com/threads/18-forester-xt-intake-mods.55638/ invalid@example.com (ikpthegame) ikpthegame Tue, 04 Nov 2025 00:44:56 +0000 https://mnsubaru.com/threads/know-a-good-body-shop.55629/ https://mnsubaru.com/threads/know-a-good-body-shop.55629/ invalid@example.com (Superglue) Superglue
needed a new front door (rust), quarter panel (rust) and rocker (rust) was quoted 15k$ they’ve had it for two weeks and haven’t touched it… so I’m going to pick it up and bring it elsewhere.

know any good places?]]> 10 Wed, 29 Oct 2025 14:23:59 +0000 https://mnsubaru.com/threads/brembo-pads-in-black-sti-brembos.55630/ https://mnsubaru.com/threads/brembo-pads-in-black-sti-brembos.55630/ invalid@example.com (Superglue) Superglue Sun, 12 Oct 2025 16:37:31 +0000 https://mnsubaru.com/threads/turbo-stud-removal.55625/ https://mnsubaru.com/threads/turbo-stud-removal.55625/ invalid@example.com (ikpthegame) ikpthegame 5 Thu, 02 Oct 2025 16:41:24 +0000 https://mnsubaru.com/threads/koyo-radiator-install.55624/ https://mnsubaru.com/threads/koyo-radiator-install.55624/ invalid@example.com (SaggyWagon) SaggyWagon 2 Tue, 30 Sep 2025 23:11:07 +0000 https://mnsubaru.com/threads/coolant-showers-hoping-to-bring-may-flowers.55609/ https://mnsubaru.com/threads/coolant-showers-hoping-to-bring-may-flowers.55609/ invalid@example.com (SaggyWagon) SaggyWagon
I’m driving on 94 one night and the car starts overheating and smoking from the engine bay, through the hood scoop mostly. I pull off and drive back home (10ish minutes). Once home, I pop the hood and find coolant all over the engine bay. Most of it seems to be on the top side, though it was ~20° so I didn’t spend too much time checking underneath....

Coolant Showers Hoping to Bring May Flowers?]]> 10 Mon, 10 Feb 2025 16:27:58 +0000 https://mnsubaru.com/threads/2014-outback-3-6-rear-differential-bushing-leaking-questions.55582/ https://mnsubaru.com/threads/2014-outback-3-6-rear-differential-bushing-leaking-questions.55582/ invalid@example.com (loxx0050) loxx0050
Anyone know if that bushing is considered part of the sub-frame or not? I would imagine not because it's the differential bushing. But I also didn't realize Subrau added fluid filled bushing to this gen vehicle either...never would've guess that as I've never heard of or seen it before.

Or where can I look to...

2014 Outback 3.6, rear differential bushing leaking questions]]> 7 Thu, 23 Jan 2025 22:41:32 +0000 https://mnsubaru.com/threads/2006-wrx-misfire-until-fully-warm-currently-cold-weather.55594/ https://mnsubaru.com/threads/2006-wrx-misfire-until-fully-warm-currently-cold-weather.55594/ invalid@example.com (LASERBLUE135) LASERBLUE135
2006 WRX misfire until FULLY warm. Currently cold weather]]> 18 Tue, 21 Jan 2025 00:44:45 +0000 https://mnsubaru.com/threads/argh-little-7mm-nut-went-missing.55596/ https://mnsubaru.com/threads/argh-little-7mm-nut-went-missing.55596/ invalid@example.com (Evil_Ed) Evil_Ed

So I went to install a Perrin Super Shift Stop in my WRX (2024). Not a big deal; pop out the trim, remove the 10mm bolts, etc. However - there was another step in there that I didn't remember from when I installed the same thing in my 2018 Crosstrek...step 11 - using a 7mm wrench, remove two small nuts - place a washer on the stud, then tighten the nuts back down. The problem is this is in a pretty tight area and it's really easy to drop a nut...and...

ARGH! Little 7mm nut went missing...]]> 18 Fri, 27 Dec 2024 15:23:29 +0000 https://mnsubaru.com/threads/how-to.55591/ https://mnsubaru.com/threads/how-to.55591/ invalid@example.com (silver03) silver03 2 Sun, 15 Dec 2024 17:46:02 +0000 https://mnsubaru.com/threads/car-cover.55588/ https://mnsubaru.com/threads/car-cover.55588/ invalid@example.com (SaggyWagon) SaggyWagon
Looking to see if anyone can point me in the right direction to find a decent cover for my 04 WRX wagon. I've found a few for WRX, STI, and Impreza wagons but next to nothing for WRX wagons. Why are wagon owners always neglected ]]> 6 Tue, 03 Dec 2024 15:27:26 +0000 https://mnsubaru.com/threads/wheres-the-traditional-have-you-put.55585/ https://mnsubaru.com/threads/wheres-the-traditional-have-you-put.55585/ invalid@example.com (silver03) silver03 ]]> 40 Wed, 27 Nov 2024 17:58:16 +0000 https://mnsubaru.com/threads/oil-filter-fitment.55586/ https://mnsubaru.com/threads/oil-filter-fitment.55586/ invalid@example.com (silver03) silver03 https://minneapolis.craigslist.org/ank/pts/d/andover-12-oem-subaru-engine-oil/7804070370.html Seems like a great deal for someone, possibly myself with our 03 WRX (2.0). Should fit...thoughts?]]> 4 Thu, 21 Nov 2024 18:52:02 +0000 https://mnsubaru.com/threads/2008-legacy-warm-cranking-issue.55584/ https://mnsubaru.com/threads/2008-legacy-warm-cranking-issue.55584/ invalid@example.com (Mnelson) Mnelson
Car: 2008 Legacy 3.0R
Modifications: None. Stock. 165k miles
Problem Description:
For a second year now, I noticed the car will cold start, run, and drive fine... But when I parked and shut off the car (occasionally) during a startup when the engine is still warm but not full operating temp, it would crank for 5-15 seconds before firing.

In some cases, it would stumble to life...

2008 Legacy - warm cranking issue]]> 7 Fri, 01 Nov 2024 17:08:46 +0000 https://mnsubaru.com/threads/2018-impreza-base-cvt-acting-up.55563/ https://mnsubaru.com/threads/2018-impreza-base-cvt-acting-up.55563/ invalid@example.com (Chin) Chin
2018 Impreza Base - CVT Acting Up]]> 5 Wed, 09 Oct 2024 13:56:08 +0000 https://mnsubaru.com/threads/03-trunk-replacement.55576/ https://mnsubaru.com/threads/03-trunk-replacement.55576/ invalid@example.com (silver03) silver03
03 Trunk replacement]]> 6 Wed, 17 Jul 2024 20:01:31 +0000 https://mnsubaru.com/threads/ej-turbo-avcs-turbo-banjo-bolt-screens-you-know-the-ones.55564/ https://mnsubaru.com/threads/ej-turbo-avcs-turbo-banjo-bolt-screens-you-know-the-ones.55564/ invalid@example.com (Chux) Chux
Was showing a P0011, which is an AVCS error for bank 1. And of course the concern is oil starvation to the turbo.

What I'm wondering, is how much disassembly is required to get to that banjo bolt? Is it blocked by the turbo or intercooler?


I'm hoping I can bring a new screen and 2 washers up to Duluth the next time I'm up, install in her driveway, and drive...

EJ turbo AVCS/turbo banjo bolt screens....you know the ones]]> 1 Fri, 24 May 2024 20:15:04 +0000 https://mnsubaru.com/threads/gas-pedal-question.55554/ https://mnsubaru.com/threads/gas-pedal-question.55554/ invalid@example.com (silver03) silver03 1 Mon, 29 Apr 2024 03:48:54 +0000 https://mnsubaru.com/threads/whats-a-subaru-without-oil-leaks-09-outback-help-thread.55485/ https://mnsubaru.com/threads/whats-a-subaru-without-oil-leaks-09-outback-help-thread.55485/ invalid@example.com (Krazylegz1485) Krazylegz1485
I'm almost...

What's a Subaru without oil leaks...? (09 Outback help thread)]]> 42 Wed, 07 Feb 2024 16:19:38 +0000 https://mnsubaru.com/threads/no-start.55534/ https://mnsubaru.com/threads/no-start.55534/ invalid@example.com (silver03) silver03
No start]]> 43 Mon, 18 Dec 2023 20:13:10 +0000 https://mnsubaru.com/threads/engine-build-recommendations.55529/ https://mnsubaru.com/threads/engine-build-recommendations.55529/ invalid@example.com (Jack Tente) Jack Tente 2 Fri, 15 Dec 2023 04:33:57 +0000 https://mnsubaru.com/threads/09-forester-and-08-wrx-headlights.55528/ https://mnsubaru.com/threads/09-forester-and-08-wrx-headlights.55528/ invalid@example.com (predavore) predavore Tue, 05 Dec 2023 21:50:16 +0000 https://mnsubaru.com/threads/swapping-a-m-downpipe.55525/ https://mnsubaru.com/threads/swapping-a-m-downpipe.55525/ invalid@example.com (SaggyWagon) SaggyWagon Thanks!]]> 4 Tue, 14 Nov 2023 01:02:11 +0000 https://mnsubaru.com/threads/p0851-on-09-forester-with-auto.55513/ https://mnsubaru.com/threads/p0851-on-09-forester-with-auto.55513/ invalid@example.com (predavore) predavore
P0851 on 09 Forester with Auto]]> 27 Mon, 23 Oct 2023 00:16:28 +0000 https://mnsubaru.com/threads/replacing-rear-caliper-not-going-well.55451/ https://mnsubaru.com/threads/replacing-rear-caliper-not-going-well.55451/ invalid@example.com (predavore) predavore
Replacing rear caliper, not going well.]]> 12 Mon, 02 Oct 2023 20:40:29 +0000 https://mnsubaru.com/threads/06-wrx-spark-plug-change-cant-take-the-coil-pack-out.31684/ https://mnsubaru.com/threads/06-wrx-spark-plug-change-cant-take-the-coil-pack-out.31684/ invalid@example.com (ychanus) ychanus
I'm currently working on the 2 plugs on the driver side. I already took out the battery and the first coil pack and the plug closest to the front.

Unfortunately, I'm completely stuck and have no idea how to get the 2nd coil pack out of the plug tube. It just doesn't have enough space to rotate the coil pack off the plug tube.

Any suggestion?...

06 wrx spark plug change. Can't take the coil pack out??]]> 21 Tue, 26 Sep 2023 14:03:19 +0000 https://mnsubaru.com/threads/forester-engine-compatibility.55497/ https://mnsubaru.com/threads/forester-engine-compatibility.55497/ invalid@example.com (Krazylegz1485) Krazylegz1485
Our 04 has an EJ251. I'm finding that the 01 could possibly either have an EJ251 or EJ25D. But also seeing that the D was 98 only? Something about one being MAP controlled and the other being MAF controlled possibly?

I looked at the 01 on Saturday and it looks very similar but...

Forester engine compatibility.]]> 9 Wed, 09 Aug 2023 19:07:40 +0000 https://mnsubaru.com/threads/running-e85-on-a-2015-wrx.55480/ https://mnsubaru.com/threads/running-e85-on-a-2015-wrx.55480/ invalid@example.com (ikpthegame) ikpthegame 5 Mon, 07 Aug 2023 01:15:18 +0000 https://mnsubaru.com/threads/ac-compressor-change-2007-subaru-forester.55476/ https://mnsubaru.com/threads/ac-compressor-change-2007-subaru-forester.55476/ invalid@example.com (Pavish) Pavish
I have a 2007 Subaru Forester that started having AC issues a few days ago. The AC would turn off on its own especially on hot days. It would restart the next time I would drive the car out (but would stop working after a bit)
I took it to a local shop. They ran some tests- Refrigerant level was OK. Power was OK. They said that the issue is with the clutch of the compressor and recommend changing the compressor (Cost 900$)

My questions are
- Is there a reliable Subaru AC repair...

AC Compressor change- 2007 Subaru Forester]]> 3