15-05-2026
Awesome
Works as intended
1
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of
1
SKU:20-1219-1
Tsudo Bellmouth High-Flow Catted Downpipe WRX/STI 2002-2007
Tsudo Bellmouth High-Flow Catted Downpipe WRX/STI 2002-2007
Regular price
$395.00 USD
Regular price
Sale price
$395.00 USD
Shipping calculated at checkout.
Upgrade your Subaru WRX/STI with the Tsudo 3" Hi-Flow Catted Downpipe. Made from 76mm stainless steel with a cast iron bell-mouth, this 200-cell DP reduces backpressure, improves turbo spool, and boosts power across all RPMs. Includes extra O2 sensor bung for wideband use and all essential hardware (Bell-mouth Gasket not included).
- 1992-1999 Subaru WRX (JDM Spec)
- 2002-2007 Subaru WRX (USDM Spec)
- 2004-2007 Subaru STI (USDM Spec)
- Flange adapter for OEM exhaust installation
- For off-road / track use only
NOTE: This product is for off-road use only and cannot be shipped to non-CARB-compliant states like CA or NY. Check local laws for SMOG compliance.
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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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Jeremy Troia-Watchman J. T. Jeremy T. 04-05-2026
Question asked: For the flange that mounts to the rest of the exhaust is there and adapter that also comes with the downpipe incase exhaust piping size differences?
For the flange that mounts to the rest of the exhaust is there and adapter that also comes with the downpipe incase exhaust piping size differences?
Answers
04-05-2026
we only have one if you are trying to fit on to the stock catback. https://semotors.com/products/tsudo-sti-wrx-impreza-exhaust-flange-adapter-3-dp-to-oem-catback?_pos=1&_sid=980afe339&_ss=r
Caleb C. Caleb 01-02-2026
Question asked: Are there 2 O2 sensor threaded locations on this down pipe? Also is this comparable with Virginia emissions standards?
Are there 2 O2 sensor threaded locations on this down pipe? Also is this comparable with Virginia emissions standards?
Answers
01-05-2026
Yes there are two, one on top of the bellmouth. The other is little pass the bracket. In Virginia, installing an aftermarket downpipe that removes or replaces the factory catalytic converter (catless) will cause a failure of the state’s emissions inspection due to visual inspection failure and OBDII readiness issues. To pass, a "high-flow catted" downpipe is required to keep the catalytic converter functional, along with a tune to prevent a check engine light.
Charles C. Charles 24-01-2025
Question asked: im looking into the highflow catted down pipe and the catless downpipe, i live in colorado springs which does not do emmissons testing would it still ship to me or is this not an option for either of the down pipes?
im looking into the highflow catted down pipe and the catless downpipe, i live in colorado springs which does not do emmissons testing would it still ship to me or is this not an option for either of the down pipes?
Answers
24-01-2025
Yes, we offer free standard shipping to Colorado Springs
israel I. israel 29-07-2020
Question asked: when is this going to be back in stock ?
or do you have any other catted downpipe for 02-07 wrx
when is this going to be back in stock ? or do you have any other catted downpipe for 02-07 wrx
Answers
29-07-2020
Most likely towards end of fall.