How to Replace Downstream Catalytic Converter in Subaru Forester and Gain 1200hp

How to Replace Downstream Catalytic Converter in Subaru Forester and Gain 1200hp

#Forester #Subaru #DIY
My 2006 Subaru Forester MT/NA has been having big issues with power delivery. What started with a bad coil pack and a bunch of misfires, resulted in a destroyed downstream catalytic converter – so don’t drive around with a misfiring engine. And this is most certainly whack because OEM costs $800+, not the cheapest part. I opted for a Bosal from Rockauto, and now I’m enjoying my life again. I think I may have even grown 3 inches taller, idk?

8,285
Like
Save


Comments

Titus Kaj says:

Phenomenal video
Thank you for providing very clear efficient intel
<3

Gino Petaccio says:

Yo I have a 2001 forester and I have the same issue. Just started sounding even worse today!! Which one would you recommend getting from rock auto now seeing as the Bosal isn’t available from them anymore. Thanks mate

TheGhung Fu says:

I big cat killer on these Subarus is when the head gaskets blow, which they will if you have the crappy single layer head gaskets (almost every EJ-25 except turbos). They need to be replaced before about 100K miles or you'll end up with coolant and/or oil in your cat$$.

Δημήτρης Τζιωτζιος says:

What if you completely delete the cat. A local engineer told me that this engine ej20 gains about 10hp

onecoolhand11 says:

Love your sense of humor. Ass pain math checks out. Thanks for the vid! About to jump into my ‘01

Insomniac230 says:

Hey man. Awesome vid. I might do this with my 11' because of same issues. However would I just be able to replace it with a straight pipe? Since there is still a cat in the front. Also wondering if that would increase performance. I should also mention that my forester is a PZEV model so it has that emissions stuff.

kevin dahlr says:

Would you feel air coming out of the muffler ?

Katrina Russell says:

About how long did it take for the entire process? About to do the same to my '01.

Gareth Yevich says:

I need a primary one! Help! Exact same year

Jake Burgoyne says:

mine was idling rough/jerking/poor acceleration, had my coils/maf/plugs switched out which fixed the idling but still had flat spots in the low rpm when accelerating, I'm about to have my o2 sensors done so hopefully it runs normal after that I'm dreading my cat converter and barely drove my forester because of it lol expensive to service but I love those foresters so I feel justified spending thousands replacing parts haha

Salohcin Rekucm says:

How many miles does your Forrester have?

neuregel says:

Just had my cat converter swapped out with two o2 sensors right before Christmas…. $1035

Josh Babeu says:

Old cats are worth money at the junkyard

Cars Simplified says:

Well done! Hopefully that was the right part and you didn't just convert your Subaru into a Cadillac.

Marcel Audubon says:

your new backyard doesn't look as scary in the bright sunlight (but what does?)

Preston Vandivier says:

YOU DID IT BOOT MAN!

Comments are disabled for this post.