15-11-2025
Great quality and fast shipping
The quality is top notch, you can feel the performance difference and hear it too. I wish the adapter flange was included but glad its offered.
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SKU:20-1218-1
Tsudo 08-14 WRX 08-19 STi Cast Iron Bellmouth Downpipe
Tsudo 08-14 WRX 08-19 STi Cast Iron Bellmouth Downpipe
Regular price
$340.00 USD
Regular price
Sale price
$340.00 USD
Shipping calculated at checkout.
Upgrade WRX or STI with the Tsudo 3" Cast Iron Bellmouth Downpipe. Reduce back pressure for faster turbo spool and peak performance. Made from corrosion-resistant T304 stainless, it includes an extra wideband bung and and requires reuse of the OEM Bellmouth gasket
- 2008–2014 WRX (MT only)
- 2008–2019 STI (MT only)
- 2005–2009 Legacy GT (MT only)
- 2005–2009 Outback XT (MT only)
- 2009–2013 Forester XT (MT only)
Need a Flange Adapter for OEM exhaust? Click here
Looking for a High-Flow Downpipe or Cat-Back Exhaust? Click here
Cat-less racing header for off road use. Not EPA-compliant and cannot be shipped to California or New York.
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Shop confidently with 30-day return policy.
Shop confidently with 30-day return policy.
Not satisfied with your purchase? No problem! Return it within 30 days for a full refund, as long as it’s in brand new condition with the original packaging. Used or damaged items will have a discounted refund. Buyers are responsible for return shipping costs or can use our convenient 20% label fee option.
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Based on 6 reviews Average Rating 4.8 stars out of 4.8/ 5
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Customers say
Reviews mention using Cobb intake, dp, and tune for dyno HP, turning off second sensor for protune, and compatibility issues with Cobb maps on catless dp.
catless-dp
1 customers mention "catless-dp" 1 Positive 0 Negative
cobb-tune
3 customers mention "cobb-tune" 3 Positive 0 Negative
Sort by:
- Jacob Banks J. B. Jacob B.
- Camren T C. T. Camren T.20-02-2023
Downpipe
Fitment was good sounds awesome , customer support was fast and helpful
- Rob C R. C. Rob C.16-09-2022
Good
Good price and quality
- Ana M A. M. Ana M.24-03-2022
Bellmouth Downpipe 2012 WRX Hatchback
Bellmouth Downpipe 2012 WRX Hatchback
- Anonymous A. Anonymous12-06-2017
It's all good so far
I placed my order on the 4th of the month and received the downpipe on the 7th. The shipping was not only free but it was shipped within a decent amount of time. I've only heard good things so far about the Tsudo downpipe and I know people with it but I'm excited and can't wait to get it installed and tuned. So far my experience has been great.
- Anonymous A. Anonymous15-01-2015
13 wrx
Great fit and quality. No boost creep or over boost. Get an adapter from dp to stock exhaust 2.5" piping from rally sport. Turn all like 11 codes off for the second 02 sensor for the protune. Cobb maps won't work on a catless dp. I only have intake and dp and the tune to bring me to 291hp on the dyno.
Sort by:
CHAD C. CHAD 05-12-2025
Question asked: What size pipe is this model
What size pipe is this model
Answers
05-12-2025
3inch 76mm
Ricardo R. Ricardo 25-02-2025
Question asked: When will the cat less downpipe for the 08-14 Wrx STI be available?
When will the cat less downpipe for the 08-14 Wrx STI be available?
Answers
25-02-2025
Only Divoice version available https://semotors.com/products/tsudo-08-13-impreza-wrx-sti-3in-divorced-wastegate-downpipe
Caleb Harmon C. . H. Caleb . H. 22-01-2025
Question asked: Does this have a Wideband O2 bung
Does this have a Wideband O2 bung
Answers
22-01-2025
Yes it does. In the first image you can slightly see it on the top of the bellmouth.
Austin A. Austin 15-12-2024
Question asked: Does this install require a tune?
Does this install require a tune?
Answers
16-12-2024
It not required, But you get more HPS if you tunned.
Enrique E. Enrique 13-05-2023
Question asked: Is it required an adapter for the joint of this downpipe with the stock pipe of the car?
Is it required an adapter for the joint of this downpipe with the stock pipe of the car?
Answers
13-05-2023
If you are installing on oem catback then the answer is yes...
Shaylee Valantine S. V. Shaylee V. 28-04-2023
Question asked: When should I expect it if I pre ordered it
When should I expect it if I pre ordered it
Answers
28-04-2023
It will shipped by first week of May
Drake C D. C. Drake C. 20-11-2022
Question asked: Does this 13' Impreza wrx?
Does this 13' Impreza wrx?
Answers
20-11-2022
yes it does fit.
Wesley Chastain W. C. Wesley C. 20-06-2022
Question asked: Hey good afternoon I was the guy who's asking about the preorder for the tisudo bell mouth catless downpipes for STI's You said to give you my email so I could be part of the preorder Thank you again. Chastainwesley@yahoo.com
Hey good afternoon I was the guy who's asking about the preorder for the tisudo bell mouth catless downpipes for STI's You said to give you my email so I could be part of the preorder Thank you again. Chastainwesley@yahoo.com
Answers
20-06-2022
Pre-orders should start after the summer. Just waiting game till then.
Wesley Chastain W. C. Wesley C. 20-06-2022
Question asked: Preorder chastainwesley@yahoo.com
Preorder chastainwesley@yahoo.com
Answers
20-06-2022
In stock
Wesley Chastain W. C. Wesley C. 09-06-2022
Question asked: When will this be back in stock and are we able to preorder so it ships on receipt?
When will this be back in stock and are we able to preorder so it ships on receipt?
Answers
09-06-2022
we will have preorder open end of this month. what is your email address or number. we can notify you once is back in stock
Nate N. Nate 28-01-2020
Question asked: I see in one picture that the O2 bung near the bell mouth is in place, then in other pictures it is not. Does this product come with the second O2 bung welded in place? The one for the wideband.
I see in one picture that the O2 bung near the bell mouth is in place, then in other pictures it is not. Does this product come with the second O2 bung welded in place? The one for the wideband.
Answers
28-01-2020
Sorry for confusion. It comes with the Bung. The other picture is just to show how it sit while installed. We did not have one for the bellmouth, so we just used the divorce. What you see in the first picture is what you are getting. Again sorry for the confusion.