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  1. Gen 5: 2015-2019
    wondering if anyone has had luck with a drop in replacement catalytic converters that add volumetric flow potential but also is (ideally) a drop in replacement for the OEM units in terms of length and fitment? ideally it would retain both o2 sensors in approx. the same positions on each unit...
  2. Problems & DIY Maintenance
    Good day all, Long-time lurker, first time poster. Thanks for having me - these forums have helped tremendously in a number of occasions. Car is a 2006 Outback 2.5i limited with 260 000 km (150k mi), manual transmission. I've had for 1-2 months now symptoms that suggest a failing catalytic...
  3. For Sale / For Free
    Exhaust Manifold with the front catalytic converter OEM Subaru part #44620AB350 Was on a car only for few tests to figure out car issues and take off that same day. So pretty new, no issues. Car ran for less than an hour with it before it was take off. It was found car had other issues. Longer...
    $2,000 USD
  4. Gen 3: 2005-2009
    2005 Outback XT Limited Turbo A/T - The front and rear cats are rusted out and the parts are 6500 and 3000 which I verified. The dealer was nice and didn't charge me anything and said to find an aftermarket part which has been a nightmare. My daughter is using the car for her senior yr at...
  5. Gen 3: 2005-2009
    NEW here and am not a DIYer. Female/no skills or tools! I have 2009 Outback (2.5L Limited) with 166K miles. Recently check engine lights went on. No other obvious issues except a sulphur smell upon starting on occasion. I added high mileage fuel cleaner and light would go off for a while, but...
  6. Forum Rules, New Member Information & Intro.
    I have a 2011 Outback 2.5i 4 cyl CVT that has a rattling sound from exhaust. Dealer noted an intermediate pie crack and quoted $2700 for part and 3k+ for replacement. After researching why the part is so expensive, it seems there is a 2nd catalytic converter in the mid pipe exhaust that must...
  7. Problems & DIY Maintenance
    So around November of 2022 I got a CEL with the notorious p0420 code. I found out it was a combination of bad battery terminals and bad exhaust gaskets but replaced the cat and sensors while I was at it. The check engine light went away. About 2 months ago, I went on vacation and let the car sit...
  8. Gen 3: 2005-2009
    Hello All, I am new here and look forward to your advice on an issue..... My 2008 Subaru Outback (2.5) stalls in reverse and first gears. Mostly, my car stalls in the morning or when it is cold In first and reverse gears of when coming to a stop. My car also has a (lag and the poof stuck...
  9. Problems & DIY Maintenance
    Hi all. I just replaced my cat due to a persistent p0420 code on my 2004 legacy outback. The new aftermarket cat I bought off of ebay did not come with any heat shielding around it. It did not appear to me that the old heat shielding from the original cat would quite fit on the new one. I...
  10. Problems & DIY Maintenance
    I have a 2015 2.6L Outback with 62,000 miles on it. In 2021 it was recalled snd the catalytic converter was replaced (never any problems prior). During the service, the head gasket was damaged, and they replaced it. Ever since, my gas mileage plummeted. I had my 60k service in July and it...
  11. Problems & DIY Maintenance
    Hi All, I can’t find solid info on if the exhaust manifolds/ main cat is the same on a 2011 Impreza 2.5 and a 2009 OB 2.5. Both autos. Same engine. Thoughts? I live in California and I just need to smog it so I can sell it ASAP. Thanks All!!
  12. Problems & DIY Maintenance
    I find it interesting that the issue of the cracked bellows is still occurring and not just in the few thousand Outbacks and Legacies that Subaru sent letters to. We are currently dealing with Subaru for this exact issue. We have a 2016 Outback with 123,000 miles. We have been smelling fumes for...
  13. Gen 4: 2010-2014
    Hello all! This is my first post. I have a 2011 outback with 140,000 miles. The car runs great with no issues. Recently I noticed an exhaust smell in the car cabin while driving and also stopping at lights. It’s tolerable but I know that it is very dangerous. I took it to a garage to check it...
  14. Gen 4: 2010-2014
    2013 Subaru Outback, 2.5L I have been deferring a P0420 code for awhile . Its on pretty much 24/7 now so Im moving forward on a cat/header replacement. The Walker cat is pretty much naked, however. OEM headers have nice shielding/cladding from flange to flange. Walker? Less so. Dinky shield...
  15. Engine & Drivetrain
    My 2013 Outback has about 118k on the odometer. I've had the dreaded P0420 on my dash for a few months with no issue. A week ago I was driving and started experiencing a shudder/intermittent power loss while accelerating. I was driving about 30 miles to Home Depot and over the course of the...
  16. Problems & DIY Maintenance
    I was driving my 2013 Outback 2.5i Limited (112,000 mi) the other day on 40 mile trip to Home Depot. Early in the journey I noticed my car shuddering a little bit and accelerating slowly from red lights. Once I got moving it accelerate better and I was doing about 55-60 no problem. About...
  17. General Discussions
    I was told by my mechanic that I need a new catalytic converter for my 06 outback. I was wondering how important it is that I replace this? How long can I go with not replacing it?
  18. Engine & Drivetrain
    My 2014 Outback has about 185k miles on it. I took it to the dealership for the recommended maintenance. After that, I've had nothing but problems with it. Several times now, all the dash warning lights have come on. I took it to the same dealership and they told me the code indicated that it...
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