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Downpipe - 2008-2014 WRX/2008+ STi

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Nameless Performance
29 product reviews
Calculated at checkout

 Product Description

This is our downpipe for the 2008+ (GR) Chassis Subaru WRX and STi. With our unique divorced design you will come on boost sooner, hold boost for longer, and have a rock solid boost curve. Our downpipe incorporates a few proprietary design features that make this the best performing downpipe on the market. This downpipe will also bolt up with the new 2015 (VA) Chassis STI.


  • Installation is a breeze, all of the bolts can be accessed from the top of the engine eliminating the up and down dance that is usually the norm with a downpipe install.
  • Possibly the best feature, is that the divorced island that we use is sized properly. This means no trimming, no cutting, no hours and hours of test fitting.
  • Extra o2 sensor bung and plug now a standard addition, so you can run a wideband air:fuel ratio gauge.

Please note:

  • This bundle REQUIRES a tune for proper vehicle operation. If you don't already have a COBB Accessport, select the Accessport option above for a killer deal.
  • This product DOES NOT fit right-hand drive vehicles.
  • Includes a high-flow catalytic converter.

Accessport Highlights

  • Simple Installation:  Everything is included for the simple installation!  Intuitive on-screen instructions identify your exact vehicle and available maps.
  • Simple Uninstall:  Revert your ECU to exactly as it was before with the easy to use Uninstall option from the main menu.
  • Trouble Codes:  Read engine trouble codes to diagnose issues.  Clear them when resolved.  Prevent expensive trips to the dealership.
  • Change Maps: Store up to 100 maps from our OTS map database or from your favorite COBB tuner and quickly switch between them for any need.
  • Gauges – Use your Accessport as a gauge to monitor boost or any other live information, directly from the ECU.
  • Data Logging:  Record multiple data channels simultaneously for in-depth evaluation of engine performance.  Stores up to 10 hours.
  • Performance Measuring:  Welcome to your own performance evaluation suite! Measure 0-60 mph time, 60 foot and ¼ mile ET’s. and Trap Speed.
  • Shift Light:  Set custom RPM warning lights for perfect shifts every time.
  • AP Manager:  Use your PC or Mac to manage maps, download recorded datalogs, or quickly update your Accessport.
  • Realtime Tuning:  Changes can be made to the map in realtime, while the engine is running.  Greatly speeds up the tuning process and allows quick changes to powerful features like Lauch Control, Flat Foot Shift, and map switching.
  • Launch Control: Set RPM threshold for performance launching the car from a stop.  Builds boost and generates instantaneous horsepower off the line.
  • Flat Foot Shifting:  Keep the throttle on the floor during shifts and maintain boost between gears with this customizable RPM setting.

COBB Accessport Application Guide


  • 2008-2013 WRX
  • 2008-2013 STi
  • 2009-2010 Impreza 2.5GT
  • 2007-2012 Legacy GT
  • 2007-2009 Legacy Spec B
  • 2007-2009 Outback XT
  • 2007-2013 Forester XT


  • 2015+ STi/WRX
  • 2014+ Forester XT

Typical Performance Gains

Stage 1: +12% HP and +19% TQ
Hardware Requirements: Stage1 - Otherwise stock vehicle with the following modifications*:
 - Intake Requirements: Stock airbox with stock air filter
 - Exhaust requirements: Stock exhaust or upgraded cat-back exhaust

Stage 2: +15% HP and +24% TQ
Hardware Requirements: Stage2 - Otherwise stock vehicle with the following modifications*:
 - Intake Requirements: Stock airbox with stock air filter
 - Exhaust requirements: Upgraded turbo-back exhaust**

* The addition of any other hardware may make the vehicle perform poorly.
**These maps are NOT designed to be used with an aftermarket race downpipe that does not have a catalytic converter (i.e. catless). Doing so greatly increases the chance for boost spikes and boost creep.

 Product Reviews

Showing reviews 1-8 of 29 | Next


    Posted by on

    the quality can't be stressed enough about the product, the welds, the materials just the over all construction, does take time to arrive on your door step, but worth the wait, the mechanics installing it were super impressed as well the quality and said the would recommend the product also, paired with the axle back and equal length headers you can not beat the sound and performance out of this product thank you nameless team looking forward to more products, the heat shield as well is incredible as well.

  2. Quality/sound unmatched

    Posted by on

    I run a full Nameless Turboback exhaust on my 2018 STi. The power, sound, and quality of these products are unmatched. Would recommend to anyone who cares about quality and performance. The only negative if you will even call it that is the lead times can be long but its expected when you are ordering something of this quality. Just hold off on making appointment with tuners. Product shipped fast once it was made!
    Thanks again

  3. Quality

    Posted by on

    The quality of anything we have ordered from Nameless is ALWAYS there!

  4. Outstanding

    Posted by on

    Installed this on my 2017 STI for a full stage 3 and I must say it’s amazing. I also love how I could install a wideband directly in the pipe. This makes a complete nameless turbo back exhaust and it sounds amazing. Would recommend to anyone.

  5. Turns the STI into a BEAST

    Posted by on

    Have had the catback nameless muffler delete for about 6 months. Absolutely loved the sound. Happened to hear another STI with the turbo back with mufflers, was blown away and decided to get the DP. Must say exceeded my expectations 100x. The car sounds incredible now, and I get the thumbs up everywhere I go. Just wish they had a canadian dealer so I could have saved on taxes + import fees. Otherwise very happy with my purchase and not looking black

  6. awesome downpipe !!

    Posted by on

    finally got around to installing the downpipe to complete my nameless exhaust. great product and a fairly easy install....had a pro tune done on the car and it runs and sounds fantastic. thx to all at Nameless for great products.

  7. Awesome!

    Posted by on

    Downpipe came in nicely wrapped. Easy to install. Can't say the same for taking off the stock downpipe. Hardest bolts ever to get off. Car sounds amazing. I have it paired up with ELH and a R400 exhaust. Sounds awesome.

    Can definitely feel more power through the car. Just gotta wait for someone to figure out the 2018 STI tuning before I can get the full potential out of the part.

  8. The Pissed of Lion Killing the Antelope

    Posted by on

    This downpipes is insane. I currently have a stock 2016 STi with the Nameless Turboback exhaust and Cobb Accessport on a stage 2 ACN 91 OTS tune. I already had their catback with 4" quad staggered tips and 4" mufflers, which to me was a little quiet (7/10) but sounded very nice. I then paired it with their downpipe and the results are ridiculous. Noise level is definitely a 10/10 so expect this downpipe to make your car a hell of lot louder. As far as noise quality, I have not heard a better sounding STi than those that carry a Nameless Exhausts. The exhaust note of the turbo back is definitely a step up from the cat back. It sounds like a lion taking down an antelope. Just pissed off at the world. You can hear and feel how much easier the exhaust travels down the car in comparison to the incredibly restrictive stock downpipe. You may be considering a larger/cheaper company to buy from but don't. The welds, the finish, the extra O2 bung, even the packaging screams quality! Not to mention the fact that it is made in America. Do yourself a favor and just buy it.

Showing reviews 1-8 of 29 | Next

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