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COBB Tuning Downpipe Catted Bellmouth - Subaru WRX 2008-2014 / STI 2008+ / Forester XT 2009-2013

MODEL # COB 524203
Manufacturer Part # 524203

$595.00

24
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RallySport Direct 2011 Subaru STI Project Car POWER Kit
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Description


When shopping for a downpipe, you know that COBB Tuning is a brand you can trust. They are pioneers of the game especially when it comes to making horsepower out of a Subaru. This is a CAD designed bellmouth downpipe that is equipped with a single high flow catalytic converter. Basically this allows for much better air flow than the factory unit, and combined with COBB’s Accessport makes for an easy an efficient means of making horsepower.

These downpipes feature 304 stainless steel construction, and has the factory style location for the 02 sensor provision.  The actual catalytic converter is fabricated out of 400 grade stainless steel that has a much higher flow rate and a longer lifespan compared to ceramic or “brick” style cats. This reaches a faster operating temperature with cleaner cold-start emissions. There will also be a second 02 sensor provision for the other 02 sensor.

Finally this is 3” in diameter for piping size, however it does taper to a 2.5” stock flange.  And this downpipe is compatible with any cat-back exhaust that mates to the factory cat section. 

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RallySport Guarantee - 30 Days


Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.

Specifications


Brand: COBB Tuning
Includes Catalytic Converter: Yes
Installation Hardware Included: No
Mouth Design: Bellmouth
Piping Coating: No
Piping Flex Joint: No
Piping ID: 3.00in
Piping Material: 304 Stainless Steel
Piping Taper: Yes
Tuning Required: Yes

Mfgr. Warranty: 1 Year
Condition: New Product
Return Policy:

RallySport Guarantee - 30 Days


Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
RallySport Guarantee
WARNING: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.

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Quality Downpipe!
Kichoman 1 month ago
Installed this a few months back on my 2012 STi which already had the Tomei cat-back. As most people already knew, the Tomei is obnoxiously loud (a tad bitter with the silencer installed). With this Cobb downpipe, the car is only slightly louder but the rumble sound is less deep. It almost sounds "raspier". I also installed Ecutek and had it custom e-tuned (stage 2). It didn't throw any codes even before I flashed my ECU. On the street, I have to keep my silencer on otherwise it is just unbearable and it draws too much attention around the city. On the track, I have the silencer off and it sounds like a beast. The car accelerates so much quicker especially in S#. Night and day difference. Not sure how that tiny cat will help in emission test (yes it still exists in my country), but I got this catted version mainly for keep the noise down. This downpipe does tapered down to stock diameter just before the flange, so you would need an adapter gasket (I have the Grimmspeed) if you plan to run a 3" catback. No leaks, easy to install, 5 stars easily.
Comment

Amazing.
STI 2 months ago
Amazing quality, fit and finish. Makes a ridiculous difference in decreasing turbo spool up time. Improves torque and sound, slightly deeper burble with stock exhaust. Easy to install.
Comment

Great upgrade
MikeG 3 months ago
Installed this with a Stage 2 OTS tune. The turbo seems to spool at least 500rpm lower and there's a lot more power when it does spool. Really linear power from spool to redline. Increased the sound level of the SPT exhaust on my car substantially. Sounds a lot meaner when heavy on the throttle but not too much louder when being gentle with the car. I also hear a lot more cool sounding afterfires and more turbo spool noise. Extremely nice quality, it's a shame I won't be able to see it better after it's installed. I knocked it down a bit on ease of install as the location of the O2 sensor bung is further rearward than the OEM downpipe and I had to remove and re-adjust the O2 sensor wiring on the transmission to get it to just barely reach.
Comment

Awesome
STI 5 months ago
After the Accessport, this is the second best upgrade for the STI. Spool up time is much quicker, acceleration is more linear. Quality of welds and construction is incredible.
Comment
Verified Purchase

Superior
Jsuey 7 months ago
I just wanted to give a big shout out to Ralley Sport for such great service !! None the less Cobb performance never let's me down. Love this down pipe and the rest of the Cobb exhaust. Great fitmant and sound on my IAG built short block:)
Comment

  • Q: Cobb dp to invidia N1 catback racing exhaust  Rico Suave 3 months ago

    Answer

    Will this dp run direct fitment to the invidia N1 racing catback exhaust single exit? and will I need a pro tune or can I run the OTS stage 2 on the Cobb accesport. Currently running cobb stage 1 with cobb sf intake and invidia N1 racing catback thanks.


    • A: An adapter will be recommended when using this downpipe with a full 3 inch catback like the N1 due to the Cobb using a donut style gasket like OEM but some choose to not use one. It will install exactly like the OEM downpipe you have now. The Cobb Stage 2+ map will work great with the Downpipe and Cobb intake.


      Evan M. 3 months ago
  • Q: fitment  Slowbaru09_GT 4 months ago

    Answer

    I have an 09 legacy gt will this fit directly into my stock mid-pipe or do i need the adapter


    • A: No adapter is needed to fit with your stock midpipe on a 09 Legacy GT. No gaskets are included so a new donut gasket, turbo to downpipe gasket and a proper tune will be all you need to install.


      Evan M. 4 months ago
  • Q: Adapter  2012 Subaru Wrx 6 months ago

    Answer

    I have a 2012 wrx hatchback with a SPT exhaust system. Will this downpipe bolt right on to my exhaust or will i need an adapter? I know i will need the turbo to downpipe exhaust gasket.


    • A: This down pipe will not require an adapter and will bolt straight up.


      Jared A. 5 months ago
  • Q: O2   loundnproud 7 months ago

    Answer

    I'm getting my gauges here soon and will be running air/fuel will this support the additional O2 or is one replaced.


    • A: The O2 sensor goes into the O2 port at the top of the downpipe.


      Tyler A. 7 months ago
  • Q: Cat  So lost 7 months ago

    Answer

    If the cat goes bad on this down pipe can you change the cat or do you have to get the down pipe again?


    • A: If the cat were to go bad I think that Cobb would like to know about it immediately. I haven't heard of a cat going out unless it was on there for 10+ years. Please let customer service know if you do have a currently blown out cat.


      Tyler A. 7 months ago
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