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Invidia Downpipe Catted Divorced Wastegate ( Part Number:INV HS05SW1DPC)

Invidia Downpipe Catted Divorced Wastegate - Subaru WRX/STI 2002-2007 / Forester XT 2004-2008

Manufacturer Part # HS05SW1DPC


MSRP: $772.00

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Turbo-Back Exhaust Stainless Steel Tip System ( Part Number:RSD 02-07SSTBS)
Turbo-Back Exhaust Stainless Steel Tip System - Subaru WRX 2002-2007 / STI 2004-2007
As low as $988.73
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If you're looking to get more power from your turbocharged vehicle, then the downpipe is usually where most start. The factory downpipe is high restrictive, and Invidia addresses this issue with their Catted Downpie with the Divorced Wastegate option. This downpipe has been crafted from 304 stainless steel, and has a 3" piping diameter to allow the exhaust gasses to escape which improves throttle response. turbo lag, and you will see increases in both horsepower and torque.

The exhaust hangers have been welded into the stock location of this downpipe so you don't have to perform any further modifications to the body. Additionally, new hardware and gaskets will be provided to make for a ready installation. 

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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
Tuning Required: Yes
Catalytic Converter Cell Count: 200

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.



Verified Purchase

2007 WRX - Free-flowing goodness
puckhead33 4 months ago
Was looking for a downpipe to pair with my HKS sport cat-back, and this fit the bill without breaking the bank. Top-quality shiny SS right of the box. Fitment is perfect - I mean so perfect I was able to line it up on the turbo studs and attach the mid-pipe by myself, with no 2nd pair of hands needed. Intercooler removal isn't required, but it makes thing easier. Notes: 1) You obviously need an ECU tune with this upgrade. 2)You will need to trim your OEM turbo heat shield or go with an aftermarket one. I trimmed mine, templates available online. 3)Easiest way to line everything up, loosen all the exhaust connections without disconnecting (except the downpipe you're removing), then tighten up working from the turbo back. No exhaust leaks, no boost leaks, nice rumble that turns into the classic boxer snarl at WOT. A Cobb Stage 2 WRX is a happy WRX.

Catless Review
RoboTuner 4 months ago
This review is for the now discontinued catless bellmouth version. A couple years ago I ordered the Invidia 3" Bellmouth Catless DP for my 02 wrx wagon after the assumed ebay special that came on the car cracked around the flange and sounded like a truck. The fitment was great, relatively easy to install (if you aren't afraid to get dirty and are somewhat handy), and to this day still looks like new! It really unlocked the rumble paired with my UEL 3-bolt headers/UP and Greddy EVO2 cat-back, you can hear the turbo spool even on the basemap, and it turns heads every day. Even being catless when I do get stopped, it wasn't for the exhaust (except when I had a pre-turbo leak) and they usually compliment how it sounds after a "it's a bit loud but eh". Can't speak entirely for the Divorced/Catted version, but overall I love it. The catted version should be a bit more quiet and "legal", attract less attention from the law, and help prevent overboost/excessive spool when internally gated on the td04.

Quality That Lasts
yaktheking 2 years ago
Bought a Catted Down pipe to keep my car somewhat legal with emissions. This was the cheapest downpipe available at the time, and I was on a budget. I've now owned the is for 3 years, and have very few complaints. I have not had a single regret about this down pipe. It gives the car an more power and reduces the traditional choke point the stock exhaust had. Recently got the car tuned by bren tuning in Mass. They were able to get 255 whp (mustang dyno) out of my car with a Typhoon intake, this downpipe and megan 3" exhaust. My only complaint is when I installed my catless up pipe I had to remove the downpipe to get to the turbo. The bottom nuts are nearly impossible to tighten without specialized tools (or smaller hands) This is more of a design flaw of the car than the product.
Verified Purchase

j_hoerter 2 years ago
The fitment is exact, sounds awesome, but most of all it PASSES EMISSIONS in Colorado!!!
Verified Purchase

Wot XTI 2 years ago
Please keep in mind that you will want to have an exhaust appointment already made when you start to put this downpipe on... The sound bring out the MONSTER in your Subaru. I switched out the stock system with new headers and matched it up with this Catted, Divorced Stainless 3" beauty. All along with a turbocharger upgrade at the same time... I am the LOUDEST car around town. Deep, throaty at idle, like a BEAST! On throttle. Too much for my taste but I love it... I'll upload a video for your 2.5 turbo Subaru enjoyment. I have an exhaust appointment in two weeks and I've added a electric dump cutout so I can have this sound with a flip of a switch! Highly suggested. I'm starting to get the wrong heat bright to me.


  • Q: Downpipe   Wrx2005 4 days ago


    I just bought the tomei cat back exhaust and am looking to replace my downpipe for the invidia catted divorced wastegate downpipe, will I need a pro tune or any kind of tune to support this exhaust set up?

    • A: If it is a stock downpipe then you will absolutely need a tune.

      Devan M. 2 hours ago
  • Q: Fitment   DishsoapMatt 13 days ago


    Would this fit my Borla XR-1 exhaust? Would I need a flat flange or donut gasket?

    • A: You'll want to use a 3" downpipe to OEM catback style adapter, the Borla uses an OEM style flange.

      Marcus E. 12 days ago
  • Q: Invidia catted downpipe to Borla XR-1 exhaust  DishsoapMatt 13 days ago


    Will this fit with my Borla XR-1 exhaust? Will I need a flat flange like the grimspeed or donut gasket?

    • A: You'll want to use a 3" downpipe to OEM catback style adapter, the Borla uses an OEM style flange.

      Marcus E. 12 days ago
  • Q: Downpipe  Cody 26 days ago


    Will this fit with my invidia n1 exhaust without any other parts needed and will I need a new heat shield

    • A: Yes it will. I would replace gaskets while you are at it too.

      Devan M. 6 days ago
  • Q: Downpipe  Cody 27 days ago


    Will this match up with my invidia n1 exhaust without any other parts

    • A: Yes it will. I would replace gaskets while you are at it too.

      Devan M. 6 days ago