Invidia Downpipe Catted Divorced Wastegate

Part #: INV HS08SW1DPC
( 70 reviews )


MSRP: $772.00


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Brand: Invidia
Includes Catalytic Converter: Yes
Installation Hardware Included: Yes
Mouth Design: Divorced Wastegate
Piping Coating: No
Piping Flex Joint: No
Piping ID: 3.00in
Piping Material: 304 Stainless Steel
Piping Taper: No
Catalytic Converter Cell Count: 200
Mfgr. Warranty: 1 Year
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.


Subaru Impreza
WRX STI Hatchback 2008, 2009, 2010, 2011, 2012, 2013, 2014WRX STI Special Edition Hatchback 2010WRX STI Limited Sedan 2011, 2012, 2013, 2014WRX STI Limited Hatchback 2011, 2012, 2013, 2014WRX STI Sedan 2011, 2012, 2013, 2014WRX Sedan 2008, 2009, 2010, 2011, 2012, 2013, 2014WRX Hatchback 2008, 2009, 2010, 2011, 2012, 2013, 2014WRX Premium Sedan 2010, 2011, 2012, 2013, 2014WRX Premium Hatchback 2010, 2011, 2012, 2013, 2014WRX Limited Sedan 2010, 2011, 2012, 2013, 2014WRX Limited Hatchback 2010, 2011, 2012, 2013, 20142.5 GT Sedan 2009, 20102.5 GT Hatchback 2009, 2010
Subaru Legacy
GT Limited 2005, 2007, 2008, 2009GT 2005, 2006GT spec.B 2006, 2007, 2008, 2009
Subaru Forester
XT 2009XT Limited 2009, 2010XT Premium 2010, 2011, 2012, 2013XT Touring 2011, 2012, 2013
Subaru Outback
XT 2005, 2006XT Limited 2005, 2007, 2008, 2009
Subaru WRX STI
Base 2015, 2016Launch Edition 2015Limited 2016

The Invidia Catted Downpipe features a Divorced Wastegate and cat, this will seperate the exhaust gas exiting the downpipe, creating a smoother exhaust flow, thus resulting in more HP and Torque. All this while keeping the exhaust fumes clean and safe for the enviroment.

The downpipe is constucted of 304 stainless steel 3" mandrel bent tubing and bolts up to any stock replacement catback or stock unit. New Downpipe Gasket recommended for purchase with this downpipe.

REVIEWS ( 70 )



Great downpipe!
jdurrett 9 months ago
Invidia doesnt really need much of a review their products speak for themselves. I paired this with the Invidia Q300 and it did make the exhaust note slightly louder...more throaty i think. My main reason for writing this review is that I can CONFIRM fitment of this downpipe with an EWG. I had worries that the EWG wouldn't fit properly due to the placement of the cat, but everything fit fine! It's a super tight fit for sure, but nothing is touching or rubbing anywhere!

SlooowWRX 10 months ago
All I can say is WOW, what a huge difference in power this downpipe makes. I have a Cobb SF Intake, Cobb AP3, Invidia N1 Dual Catback and now the Invidia Catted Downpipe. I HIGHLY recommend you get a Protune when you go Stage 2. My tuner did a dyno run on Cobb's OTS stage 2 tune, my car made 245hp/255lbft. After his adjustments for a conservative tune, it's putting out 297hp/300lbft at 18.5psi max boost! The car pulls significantly stronger and the downpipe and N1 dual combo sounds MEAN.
Verified Purchase
Stage 2+ Great results
apetrillo8783345 11 months ago
I bought this down pipe when RSD had a 10% off invidia deal. I performed the install myself in my garage with the car on jack stands. The car is a 2011 and had 35k miles on it. With a bunch of pre soaking with WD40 and some patience the install was done in about 5 hours. It requires the removal of the intercooler which you will get used to if you work on your sti yourself. The downpipe was BEAUTIFUL out of the box. The wields were flawless and the finish on the pipe itself was very nice minus a few scratches. The flange sat perfectly flat against the turbine and has no leaks. It has been a year since and the down pipe is now burnt/brown in color but this is expected as i had gotten allot of WD 40 on it during the install. Still no warping/leaks or rust. Great product.

2011 STi
COsti2243 1 year ago
Great product amazing sound. Easy install provided I have access to a lift at work.

shanerbra 1 year ago
this donwpipe is awesome the sound of it with the n1 race is crazy.


  • AnswerQ: fitment  Trippy 15 days ago

    will this fit the cobb catback exhaust?

    • A: The Cobb exhaust is designed to use an adapter. A 3 inch downpipe to stock catback adapter like part number GRM 077044 is recommended for a leak free installation.

      Evan M. 14 days ago

  • AnswerQ: Fitting  UNOSTI 2 months ago

    will this fit my 2016 STI Limited

    • A: Yes, this will fit your car.

      Josh P. 2 months ago

  • AnswerQ: Would this work?  SubieDevil 2 months ago

    I have the Nameless axelback on my 14 Sedan, everything else is stock. Apart from the downpipe and a heatshield, would I need to get anything else for this to work with the stock midpipe? Also, do you guys recommend getting an aftermarket midpipe as well or would sticking with the stock one work just fine?

    • A: A turbo to downpipe gasket is recommended as well as a 3" downpipe to stock catback adapter with donut gasket if you are using the stock midpipe. If you switch to an aftermarket midpipe with a 3" flange then the adapter is not needed.

      Nick S. 2 months ago

  • AnswerQ: Heat shield and y pipe?  Ozzy_gee153651 2 months ago

    Will the Perrin heat shield fit over this dp? And what would I need to make it fit my Perrin midpipe y pipe?

    • A: The Perrin heat shield for your vehicle should be a good fit. For a Perrin Midpipe/Catback, this will mount directly if it uses the same flat 3 inch 2 bolt flange.

      Evan M. 2 months ago

  • AnswerQ: invidia N1 cat back   2011sti_guy 3 months ago

    I have the invidia n1 cat back on my 2011 sti sedan if I buy this downpipe do I also need to purchase a mid pipe to complete the exhaust

    • A: The mid-pipe is located on your catback exhaust already, this will complete your turbo back exhaust setup.

      Trevor C. 3 months ago