MAZDASPEED3 Gen2 SS 3" Cat-Back Exhaust

$ 895.00

Availability: BACKORDER :: Ships in 1 - 7 Days
Product Code: 572101

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The layout of this COBB 3" SS Cat-back was chosen to minimize the total bend degrees used to route the exhaust piping for reduced back pressure. The entire system fits within the factory exhaust path to allow the exhaust to be tucked up as close to the undercarriage as possible to achieve maximum ground clearance. Exhaust piping is 3" diameter from the downpipe to the split, where dual 2.5" pipes whisk the exhaust out of the system. The resulting path of least resistance minimizes back-pressure for maximum power gains. Harsh engine exhaust noise is subdued via one primary resonator and one secondary resonator. These chambered resonators provide sound reduction without adding restriction to the exhaust flow. The resulting mellow rumble sounds and feels powerful, without being overbearing. This exhaust was designed to meet the 95dB sound restriction even when used as part of a full turbo-back exhaust system. Significant effort went into making this exhaust look as good as it sounds and performs. Both resonators are custom built and finished with beautiful welds. The 2.5" and 3" stainless steel piping has a satin finish for a stunning appearance. The exhaust is finished with two 4" slash-cut, double-wall rolled tips with laser etched COBB logos. The entire kit is constructed of T304 stainless steel to ensure that it stays looking this great for years to come. This cat-back exhaust will work with the stock or any direct factory replacement downpipe. The two bolt flanges allow slight adjustability for absolutely perfect fitment. Includes all gaskets and hardware, and uses the stock doughnut gasket to mate to the downpipe.


The COBB Tuning 3" SS Catback Exhaust was engineered specifically to match the performance needs of the 2010-2013 MAZDASPEED3. The design of this Gen2 MAZDASPEED3 cat-back exhaust focused on three specific areas; reduced back-pressure for increased power potential, compliance with sound regulations when used in a full turbo-back exhaust system, and eye-popping styling. The final product is an over-achiever!

MAZDASPEED3 Gen2 SS 3" Cat-Back Exhaust
  • 304 Stainless Steel for Corrosion Resistance
  • 3" to Dual 2.5" Mandrel Bent Piping
  • Dual 4" Double Walled Slash Cut Tips
  • Works with COBB, Stock and Direct Replacement Downpipes
  • Within SAE J1169 Sound Restrictions

Customer Photos

MAZDASPEED3 Gen2 SS 3" Cat-Back Exhaust is rated 5.0 out of 5 by 5.
Rated 5 out of 5 by from Really nice exhaust This is an excellent exhaust for the Mazda. The tone is amazing. It has a nice deep tone but it's not overwhelming. Really opens up when you hit the gas though. The one exhaust hanger that came with the exhaust is needed so the first resonator doesn't rattle but I did have to end up getting the full hanger kit to fix all the rattles. The exhaust ended up hitting on the from in other places under the car. I still get the occasional rattle on the heat shields. I need to get back under the car and actually cut away some of the heat shields. Just a warning what to be prepared for when putting on this exhaust. Tone, craftsmanship and awesome customer service. This exhaust is 5 stars all the way.
Date published: 2018-05-24
Rated 5 out of 5 by from Must buy! Recently installed this catback on my 2013 MS3. And let me tell you, it sounds amazing! Not only does it roar when you throttle it but sounds like it sleeps at idle. Perfect, especially seeing the reaction of drivers next you as you floor it at a traffic light. I used this on a CNT catless dp so if you have the same and question if it will fit, it will fit perfectly. Thanks again COBB!
Date published: 2018-10-07
Rated 5 out of 5 by from ^-^ Such an amazing product, it's solid and has a great pitch. I had an issue with the exhaust rattling at low rpm but was easily fixed when we diagnosed it was tapping the heat shield, of which we just bent the shield until it had enough clearance.
Date published: 2014-08-18
Rated 5 out of 5 by from As good as advertised! I was considering several exhausts. The Cobb, Borla, CorkSport, and Magnaflow. A few others were suggested from forum/group feedback, but two of my close friends who know a good bit about products recommended the Cobb. Reasons were that the system was very well made, it was not as loud as others (with baffles), and that it flowed exceptoinally well. The price was at my max, but I am glad I spent the money. The exhaust is quieter at times than my OEM exhaust, but opens up nicely when needed. It has made my BNR stage 3 turbo breathe like it was meant to! The only issues I had was there was a bad spot on one of the pipes, and though I carefully installed it, the tips are slightly uneven. I'm using a Cp-e catted DP and with that the front baffle was hitting my mid-brace, but I was able to bend the middle of that out to fit. All that was hitting was about 1/16" of the back of the resonator. But customer service is working with me on that. Very pleased with the product and it looks great!
Date published: 2018-08-14
Rated 5 out of 5 by from Amazing Sound; Looks Great! I recently purchased my Cat-Back Exhaust for my Mazdaspeed3 and installed it myself. Very clean look that adds an aggressive sound! I couldn't be more stoked about it. It's a must-buy in my opinion for the Mazda.
Date published: 2018-04-30
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