Subaru

Subaru SS 3" Downpipe

$ 595.00

Availability: Ships in 24 hours
Product Code: 524203

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Description

The COBB Tuning downpipe begins with the CAD designed bellmouth that directs the air coming out of the turbo. The design permits the air to flow with very little turbulence to the single high flow catalytic converter. This metal substrate cat is highly efficient, allowing the exhaust to flow much easier than the factory unit ever would. The COBB downpipe, combined with our Accessport engine management, is one of the most easy installations for any enthusiast looking to unlock the true potential of their WRX. The engineering that went into the COBB 3" Downpipe started with the CAD designed investment-cast turbine outlet, made of 304 stainless steel for enduring corrosion resistance and reduced heat transfer to the engine bay. The shape of the outlet flange smoothly blends the turbine outlet and wastegate gases. The outlet flange is configured with an O2 sensor bung to accommodate the stock O2 sensor. A custom spun metal substrate high flow catalytic converter comes next. This one piece 400 grade stainless steel cat has a much higher flow rate and longer lifespan compared to ceramic or "brick" style cats. It also reaches operating temperature faster than other style cats for cleaner cold-start emissions. A second O2 sensor bung is located immediately after the cat to be used by the second OEM O2 sensor. All tubing used in the fabrication of this downpipe is 304 stainless steel for increased corrosion resistance. The end piping tapers down to a flange that uses the stock donut gasket and factory spring bolts to aid in flex, longevity and proper fitment. This provides an improved seal compared to other methods, as well as reduced noise. An additional benefit is that it makes the COBB 3" Downpipe compatible with any cat-back exhaust that mates to the factory cat section.


Why?

The COBB Tuning turbo downpipe is one of the premier modifications most owners look to upgrade on their vehicle. By opening the diameter of exhaust flow coming out of the turbo, the downpipe unleash power where the stock restrictive unit lacks.


Features
Subaru SS 3" Downpipe
  • CAD Designed Cast Turbo Outlet for Maximum Flow
  • 304 Stainless Steel for Corrosion Resistance
  • Custom Spun Metal Substrate High Flow Cat
  • Two O2 Bungs for Factory & Aftermarket Sensors
  • Tapered Piping Utilizes Stock Donut Gasket for Optimal Sealing & Long Life


Customer Photos

Reviews
Subaru SS 3" Downpipe is rated 4.9 out of 5 by 10.
Rated 5 out of 5 by from Another quality cobb upgrade Great addition to my 09 wrx 5 door. Very noticeable increase in torque and boost just as the graphs show. This was my latest upgrade in addition to the cobb sf intake and SPT cat back exhaust. install : all in all it took me about 3 hours and I did it solo - would definitely take less with a helper. The install video is pretty on point. I would definitely replace the 'donut' gasket, my car only has 55k miles on it and the old gasket was rusted/gunked into the old dp... I chiseled it off and the thing was a mess, so I took the gf's car to the local dealer and bought a replacement. I also replaced the springbolts where the dp and mid pipe connect, mine were pretty rusted and one of the springs actually broke when I took it off.
Date published: 2015-11-02
Rated 5 out of 5 by from The one upgrade every FXT needs Top quality product, perfect fit and easy installation. Pricey, but worth the money. Fitted with an efficient cat. so my social conscience doesnt feel bad for polluting, nor does the car smell. Factory like fit, and stock-silent with the factory cat back, the perfect upgrade for a daily driver. Big power gains in an easy to install package. I'd highly recommend getting new flange & donut gaskets, OEM ones are cheap insurance.
Date published: 2015-03-03
Rated 5 out of 5 by from Awesome product Me and my buddy put this on and it took us about 5 hours of partially goofing around and such. For the 2016 STI it is nearly impossible to get to the turbo heatshield / downpipe without taking off the intercooler. I am currently running a Muffler Delete Axle Back system ontop of this, and it sounds awesome. It is deep and has a nice rumble. The major difference I noticed between Stage 1+ and Stage 2 is that boost hits and holds 17-18lbs at 4000 rpms in stage 1+, but in Stage 2 it hits around 10lbs at 3500-4000 and then starts building but is way torque-ier. Over all, awesome product and I recommend it if you are looking for a little extra kick
Date published: 2017-12-14
Rated 5 out of 5 by from Incredible Product Fitment was spot on, appearance and build quality A+ Performance gained is incredible. When paired with Accessport and Short Ram Intake, the difference is unreal. Car felt completely different - I just took my car back to stock and removal was easy as well. Can't believe the difference in the performance of the car with and without the downpipe.
Date published: 2015-03-16
Rated 5 out of 5 by from Best Value Mod EVER! After a month with the AP, I knew I wanted more... The COBB DP was the answer! Unmatched build quality and fitment. Super easy to install on jackstands in a tight garage, solo. Integration with AccessPort is seamless. Completely different car now. Zero turbo lag and pulls hard all the way to 6500RPM. Only slightly louder than stock which is great when trying NOT to attract attention of CHP. No "bees in a can" sound either. Had high-flows on other cars and noise was borderline unbearable. NOT with Cobb DP. Bonus, now you can hear the turbo spool. SWEET. Cant wait for first track day!!
Date published: 2018-01-08
Rated 5 out of 5 by from Great product, but be prepared! I had it in my wish list for a while and finally bought it. I did my research and watched a bunch of YouTube installation videos and ordered all gaskets, bolts and nuts ahead of time so install went smooth. Had to use penetrating oil and torch to break loose turbo nuts and bolts but it wasn't too bad. The whole process took about 4 hours. At first test drive immediately noticed low end torture increase and better exhaust sound comparing to stage 1. I'm very pleased with stage 2, plenty of power and exhaust sound is great with some crackles and pops of backfire. Highly recommend!
Date published: 2017-09-01
Rated 4 out of 5 by from Great Product, but... I would like to have known ahead of time that it is highly likely you will have to replace the turbo gasket and donut gasket when doing this install. The stock donut gasket on my stock downpipe after 40k miles is completely seized and will not come off without tearing up so a new one is needed. To be safe I am now ordering a turbo/downpipe gasket to replace as well. This would have been extremely useful information on the initial install to begin with. Now I have to take everything back off the top of the motor, take off the heat shield (that I had to buy later from Cobb because guess what, the stock one won't fit on the Cobb downpipe) and do all the work I did almost over again. If I have anything to add it is to recommend FROM THE START.... You need the Turbo to Downpipe gasket, Donut gasket for the mid-pipe and the Cobb Heat Shield. You really wasted a lot of my time and it really irritates me. Nice downpipe, really poor delivery....
Date published: 2017-08-08
Rated 5 out of 5 by from Stage 2... I had this installed yesterday along with the COBB 2" Uppipe and Heat Shield. I already have the AP V3 and SF Intake. All I can say is this woke up my 2014 WRX!!! All smiles, my mechanic said this was the easiest installation because of the craftsmanship of your products! Job well done COBB. Now for me to save my pennies and buy more...
Date published: 2016-06-08
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Questions

Confirmed Applications
2008 Subaru Impreza STi Hatch MT ADM 2008 Subaru Impreza STi Hatch MT USDM 2008 Subaru Impreza WRX Hatch AT USDM 2008 Subaru Impreza WRX Hatch MT ADM 2008 Subaru Impreza WRX Hatch MT USDM 2008 Subaru Impreza WRX Sedan AT USDM 2008 Subaru Impreza WRX Sedan MT ADM 2008 Subaru Impreza WRX Sedan MT USDM 2009 Subaru Impreza 2.5 GT Hatch AT USDM 2009 Subaru Impreza 2.5 GT Sedan AT USDM 2009 Subaru Impreza STi Hatch MT ADM 2009 Subaru Impreza STi Hatch MT USDM 2009 Subaru Impreza WRX Hatch MT ADM 2009 Subaru Impreza WRX Hatch MT USDM 2009 Subaru Impreza WRX Sedan MT ADM 2009 Subaru Impreza WRX Sedan MT USDM 2010 Subaru Impreza 2.5 GT Hatch AT USDM 2010 Subaru Impreza 2.5 GT Sedan AT USDM 2010 Subaru Impreza STi Hatch MT ADM 2010 Subaru Impreza STi Hatch MT USDM 2010 Subaru Impreza WRX Hatch MT ADM 2010 Subaru Impreza WRX Hatch MT USDM 2010 Subaru Impreza WRX Sedan MT ADM 2010 Subaru Impreza WRX Sedan MT USDM 2011 Subaru Impreza STI Sedan MT ADM 2011 Subaru Impreza STi Hatch MT ADM 2011 Subaru Impreza STi Hatch MT USDM 2011 Subaru Impreza STi Sedan MT USDM 2011 Subaru Impreza WRX Hatch MT ADM 2011 Subaru Impreza WRX Hatch MT USDM 2011 Subaru Impreza WRX Sedan MT ADM 2011 Subaru Impreza WRX Sedan MT USDM 2012 Subaru Impreza STI Sedan MT ADM 2012 Subaru Impreza STi Hatch MT ADM 2012 Subaru Impreza STi Hatch MT USDM 2012 Subaru Impreza STi Sedan MT USDM 2012 Subaru Impreza WRX Hatch MT ADM 2012 Subaru Impreza WRX Hatch MT USDM 2012 Subaru Impreza WRX Sedan MT ADM 2012 Subaru Impreza WRX Sedan MT USDM 2013 Subaru Impreza STI Sedan MT ADM 2013 Subaru Impreza STi Hatch MT ADM 2013 Subaru Impreza STi Hatch MT USDM 2013 Subaru Impreza STi Sedan MT USDM 2013 Subaru Impreza WRX Hatch MT ADM 2013 Subaru Impreza WRX Hatch MT USDM 2013 Subaru Impreza WRX Sedan MT ADM 2013 Subaru Impreza WRX Sedan MT USDM 2014 Subaru Impreza STI Sedan MT ADM 2014 Subaru Impreza STi Hatch MT ADM 2014 Subaru Impreza STi Hatch MT USDM 2014 Subaru Impreza STi Sedan MT USDM 2014 Subaru Impreza WRX Hatch MT ADM 2014 Subaru Impreza WRX Hatch MT USDM 2014 Subaru Impreza WRX Sedan MT ADM 2014 Subaru Impreza WRX Sedan MT USDM