PRE-ORDER ONLY - Expected to Ship in ~July

Are you wanting something for your Mazda 3 to give it a whole new feeling and presence when you’re carving the backroads or just driving on your daily commute? The CorkSport Mazda 3 80mm Cat back Exhaust does just that, all while being virtually drone free so highway cruising and driving around town is still enjoyable.

Read the BlogThe New & Bigger 80mm Mazda 3 Cat Back Exhaust

2021+ Mazda 3 Turbo 80mm Cat Back Exhaust System

The 80mm CBE is the ultimate exhaust for those who want the best sound and performance out of your Mazda. The tone is more aggressive than the CS 63.5mm CBE, but refined at the same time giving it the best of both worlds. Check out the sound clips below to listen to what your Mazda will sound like with the CS 80mm Cat Back Exhaust.

The 80mm cat back was optimized for the SkyActiv-G Turbo engine, but will also fit the AWD non-Turbo models if you want a louder more aggressive exhaust tone.

The CorkSport Advantage

Best Mazda 3 Turbo Cat Back 3-inch Exhaust

Optimized Sound:

The CorkSport 80mm Mazda 3 Catback Exhaust was designed specifically for the 2.5L SkyActiv-G Turbo engine as a complete cat-back with unique dual chamber resonators. Because of this, the 80mm exhaust will only be sold as a cat back.

When increasing the piping diameter, commonly more drone is created which is annoying to drive with. We developed the dual chamber resonator specifically for this engine to combat drones in both high and low frequencies.

While retaining the same unique asymmetrical axle back design; we went through multiple resonator setups and this combo proved to offer the best sound with the least drone so you can enjoy the best of both worlds while driving.

Horsepower Gains:

The Mazda 3 Cat-Back Exhaust provides improved horsepower and torque across the entire RPM range vs the OEM exhaust system when tested on a Mazda 3 Turbo model. Gains of 5-13wHP & 5-23wTQ were measured with a DynaPak chassis dyno on an otherwise stock vehicle. After installing, there is no tuning required for your Mazda. Depending on your mods, you may achieve a higher power potential.

Close up of the 80mm Cat Back Exhaust fitment matching OEM quality

OEM Fitment:

Fitment was a major part of the development of the CorkSport 80mm Mazda 3 Cat Back Exhaust. We went to great lengths to ensure that the fitment matched the OEM quality so the installation is spot on. We checked fitment with the stock hatch bumper, appearance kit bumper, and sedan to ensure all setups look and fit as good as the CS 80mm CBE should.

To provide great ground clearance and ample room for the drive shaft, the exhaust was tailored to fit the vehicle.

2021+ Mazda 3 Turbo 80mm Exhaust material

Materials & Manufacturing:

The CorkSport Mazd 3 80mm Cat Back Exhaust is constructed from 304 stainless steel, mandrel bent, and TIG welded. The Cat Back is then fully polished to provide a great look. We have reinforced the hangers with extra support to make sure they will withstand harsh driving conditions.

Mazda 3 Turbo Cat Back Exhaust 88mm hardware for installation

Complete Install

Included with each exhaust is all of the necessary hardware and gaskets so the installation can be completed quickly without any interruptions.

NVH (noise, vibration, and harshness) in the cabin of your vehicle will be increased by the installation of this exhaust. We highly recommend you view the above video (coming soon) to hear the exhaust note inside and outside the vehicle.
NOTE: There is no option for FWD fitment at this time.
Sound was optimized for turbo models, installation on a non-turbo AWD model may result in drone and/or overly loud exhaust note.
Non-Turbo AWD models equipped with cylinder deactivation will need to purchase the cylinder deactivation bracket from CorkSport separately. Call us to order (360) 260-2675
Sold as a Cat-Back Exhaust only, will NOT be sold as an Axle-Back Exhaust or Mid-Pipes Exhaust.

Additional Features

Vehicle Fitment: 2019+ Mazda 3 AWD Non-Turbo, 2021+ Mazda 3 AWD Turbo, (Fits Hatch, Hatch w/Aero Kit, Sedan).
Developed in America: Designed, tested, and validated in Vancouver, Washington, in the Pacific Northwest.
CorkSport Service and Support: Receive a 2-year warranty, full-color installation instructions, all of the needed installation hardware, and knowledgeable telephone installation support.

How To Install the Mazda 3 Turbo 80mm Cat Back Exhaust

It will take you Approx. 2 hours to install.

2 hour Install Time

2/5 Difficulty

2-Year Warranty

No CEL

This is a very high quality exhaust with no drone that's not too quiet or too loud. Corksport's instructions made the installation process straight forward and easy.

Matthew Archer08/27/2023, 05:29 PM

I installed the 80mm CBE almost a year ago (it shipped with the new midpipe hanger to help with the driveshaft issue) and it has never hit or scraped my driveshaft. I am / was impressed with the build quality and welds, and as long as you follow directions, the exhaust tips will stay on if you put em on right. I have not had any exhaust leaks, but, again, I did follow the instructions to a "T". There is no need to weld them like some people claim. The sound is great, and in my honest opinion, it is not excessively loud- but it is considerably deeper and has a certain "growl" to it with minor burbles on idle. To be fair though, I haven't heard my Turbo 3 being driven by me so all I really have to guage its loudness is cold starts and cabin noise lol.

Be warned, if you don't like noise, there is a slight drone at 70+mph, but then again, if you didn't want to hear your car then why would you get this 80mm exhaust in the first place? Other than that, there is no drone on regular roads and it's perfect for a daily driver looking for an "oem plus" feel.

Alex07/08/2023, 06:21 PM

Well the only bad reviews were for the drive shaft rubbing but they include an entirely new exhaust hanger bushing now so I didn't have that issue. I absolutely love it, it rattles my garage when I first start it in the morning it's so loud on start up I can't even hear the seat belt chime. Really impressed how deep and choppy it sounds especially just idling. Looks beautiful installed, sounds incredible, power gains on the top end, car doesn't even vibrate anymore when you're at a red-light in drive with your foot on the brake. If you're even remotely interested in purchasing this product I'd say just do it, no matter how I look at it this exhaust it was an upgrade in every way.

Steven Carducci02/22/2023, 07:18 AM

Absolutely outstanding exhaust! Has a very deep and throaty roar that only improves with time. Engine/throttle response is also greatly improved, and there's no longer a slight hesitation after getting on the throttle. Running this in conjunction with the BMS Stage 1 intake for the time being and it's definitely a nice-sounding, free-breathing combo.

For Install -
Highly recommend utilizing at least 4 jack stands, due to the Downpipe>Midpipe connection being hard to reach otherwise.

Also, while not specified in the "Tools Needed" section of the instructions, a 22mm Wrench (not Socket) is needed, in order to remove the O2 sensor. Fortunately, a neighbor was kind enough to let me borrow an adjustable wrench, and after repeated swear words and "love taps" on the area around the O2 sensor, I was able to get it off.

All in all, I highly recommend this exhaust to those that both want to increase your performance and scare the local wildlife. 10/10

Mark Garland02/21/2023, 03:42 AM

Easily best sounding exhaust for the 3, very throaty exhaust tone brings a whole new life to it! Should be on everyone’s wish list or future mod list!!

Conner Davidson01/18/2023, 10:42 AM

Wow! I love this pipe! I had previously purchased the air intake, and subsequently the heat shield, and loved the turbo sounds released. Now there is a great sound at the rear end as well. It has a very nice tone and is very streetable without being obnoxiously loud. There is also a noticeable increase in responsiveness. It took me a little more time than the 2 hours but I'm sure that varies and I had to get a new air gun mid-stream especially to get the front exhaust bolt on the driver's side. I highly recommend this quality made exhaust system!

Chris Sweeney12/26/2022, 11:28 AM

Cant go wrong with corksport parts

Josiah Gomez12/10/2022, 12:00 PM

The girth the bubble butt jelly bean/egg car needs and deserves. A nice deep note with a pleasant in cabin experience (and mine is stripped out with some sound deadening) but also sounds great in a stock interior. Greatly helps the butt dyno feeling and there's little to no doubt people are going to turn heads in many types of vehicles. Compliments have come in from everything under the sun so far.

Cold starts will get attention, and parking garages are fun again. The car gains a bit of low and mid range power with the exhaust girth freeing up turbo spool removing air flow restrictions on our tiny turbo.

The added downpipe once available to the public just makes every aspect even better, giving the car a MEAN growl.

Phillip Dandurand10/20/2022, 05:52 PM

Like a fine wine, this exhaust only gets better with time! The wizards at Corksport have somehow perfected the tone and volume of this exhaust; quite aggressive and pronounced when on the throttle (though not obnoxious), and subdued yet still noticeable when not.

As for my experience with the driveshaft contact issue: I used the Corksport provided extended exhaust hanger and had no issues. Aside from some standard mishaps to be expected, everything went in and aligned as designed!

Love it!

Cryssa10/18/2022, 08:55 AM

Thank you for making a tough sounding exhaust! Got a compliment from an Audi R8 driver. He said it’s the best sounding car he’s heard in this class of car. Made my day!
I wanted to respond to the review talking about the driveshaft rubbing on the exhaust. I had the same issue. CS has quickly responded to the issue by developing an extended midpipe hanger to help lower the exhaust away from the driveshaft. They shipped out a kit to all customers automatically for free. Thanks CS!

Riegs09/30/2022, 11:35 AM

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Write a review

Is it possible to get the shorter tips now and down the road when i get the areo kit to buy the longer tips

Asked by Isiah Rosario | 04/24/2026, 12:24 AM | 1 answer(s)

Can we purchase the axle back seprately?

Asked by Jason | 10/31/2025, 02:52 PM | 1 answer(s)

What is the warranty for this axle back?

Asked by Lowell | 06/23/2025, 07:16 AM | 1 answer(s)

The Mazda3 turbo have a main and secindary catalyst. If I install the catback am I loosing the secondary one?

Asked by Marc-Andre | 01/14/2025, 09:10 PM | 1 answer(s)

Is the only difference between Hatchback w/ and w/o aero kit the length of the tips? Only curious because I may get a body kit that isn't stock or aero and I want to understand what my options are for tip length.

Asked by Brandon macDuff | 09/29/2024, 12:48 PM | 1 answer(s)

Why does at the end of the exhaust only one pipe has a resonator not both?

Asked by Oliver | 09/21/2024, 12:28 AM | 1 answer(s)

Does it fit on a gt turbo 2024

Asked by Hugo | 07/05/2024, 09:06 AM | 1 answer(s)

Does this fit 2023 FWD Hatch models?

Asked by Jacob Fawns | 07/22/2024, 08:04 PM | 1 answer(s)

Does this fit the 2024 Mazda 3 turbo hatchback?

Asked by Ismael | 06/22/2024, 06:09 AM | 1 answer(s)

If I have the sedan but want the tips to stick out will the areo kit still fit it?

Asked by Iban Mendez | 05/23/2024, 12:55 PM | 1 answer(s)

Will this fit a 2019 Mazda 3 Turbo Sedan? The fitment section says no but the "google research" says yes. I just don't wanna go for this over the axle back exhaust if it does not fit.

Asked by Alex | 04/30/2024, 11:26 AM | 1 answer(s)

Will this fit the 2022 hatchback 2.5L turbo ?

Asked by Anthony Padilla | 08/13/2023, 05:14 AM | 1 answer(s)

Is it 100% stainless besides the bolts

Asked by Chad | 07/14/2023, 08:12 PM | 1 answer(s)

I have the CS rear motor mount installed, and it introduced quite a bit of NVH. Will the NVH become worse on cars with the RMM 80 mm CBE installed?

Asked by Ron L | 03/09/2023, 08:08 AM | 1 answer(s)

What is the decibels level this exhaust reaches

Asked by Kyle | 02/17/2023, 10:04 AM | 1 answer(s)

It is possible to buy only the axle back? 80mm

Asked by Armando Rodríguez | 01/02/2023, 01:20 PM | 1 answer(s)

Are there weight savings versus stock exhaust? If so, how much?

Asked by Dallas | 12/28/2022, 09:10 AM | 1 answer(s)

How does the sound compare for the N/A models vs the CS 63.5mm. I'm looking to upgrade to leave room for ITB airflow when installed.

Asked by Zach | 12/05/2022, 03:16 PM | 1 answer(s)

Will this pass VA Emissions testing and inspection?

Asked by Gleb | 11/23/2022, 06:46 AM | 1 answer(s)

Does it fit on non-turbo model?

Asked by DZ | 10/21/2022, 12:48 AM | 1 answer(s)

Does it affect the MPG

Asked by Chris | 10/19/2022, 04:50 PM | 1 answer(s)

Is this California CARB Legal?

Asked by Isaac | 09/13/2022, 06:58 PM | 1 answer(s)

New post

Mazda performance parts financing is available with CorkSport

Looking to finance your parts purchase and want to get 6 months NO interest on any purchase over $199? Click on the image above for more details.

Fits

2019+ Mazda 3 AWD Non-Turbo

2019 Mazda 3 AWD Non-Turbo
2020 Mazda 3 AWD Non-Turbo
2021 Mazda 3 AWD Non-Turbo
2022 Mazda 3 AWD Non-Turbo
2023 Mazda 3 AWD Non-Turbo
2024 Mazda 3 AWD Non-Turbo

2021+ Mazda 3 AWD Turbo

2021 Mazda 3 AWD Turbo
2022 Mazda 3 AWD Turbo
2023 Mazda 3 AWD Turbo
2024 Mazda 3 AWD Turbo

2021+ Mazda 3 Hatchback

2021 Mazda 3 Hatchback
2022 Mazda 3 Hatchback
2023 Mazda 3 Hatchback
2024 Mazda 3 Hatchback

2021+ Mazda 3 Hatchback w/Aero Kit

2021 Mazda 3 Hatchback w/Aero Kit
2022 Mazda 3 Hatchback w/Aero Kit
2023 Mazda 3 Hatchback w/Aero Kit
2024 Mazda 3 Hatchback w/Aero Kit

2021+ Mazda 3 Sedan

2021 Mazda 3 Sedan
2022 Mazda 3 Sedant
2023 Mazda 3 Sedan
2024 Mazda 3 Sedan

Conner Davidson

01/18/2023, 10:42 AM

Comment
Easily best sounding exhaust for the 3, very throaty exhaust tone brings a whole new life to it! Should be on everyone’s wish list or future mod list!!

Mark Garland

02/21/2023, 03:42 AM

Comment
Absolutely outstanding exhaust! Has a very deep and throaty roar that only improves with time. Engine/throttle response is also greatly improved, and there's no longer a slight hesitation after getting on the throttle. Running this in conjunction with the BMS Stage 1 intake for the time being and it's definitely a nice-sounding, free-breathing combo.

For Install -
Highly recommend utilizing at least 4 jack stands, due to the Downpipe>Midpipe connection being hard to reach otherwise.

Also, while not specified in the "Tools Needed" section of the instructions, a 22mm Wrench (not Socket) is needed, in order to remove the O2 sensor. Fortunately, a neighbor was kind enough to let me borrow an adjustable wrench, and after repeated swear words and "love taps" on the area around the O2 sensor, I was able to get it off.

All in all, I highly recommend this exhaust to those that both want to increase your performance and scare the local wildlife. 10/10

Steven Carducci

02/22/2023, 07:18 AM

Comment
Well the only bad reviews were for the drive shaft rubbing but they include an entirely new exhaust hanger bushing now so I didn't have that issue. I absolutely love it, it rattles my garage when I first start it in the morning it's so loud on start up I can't even hear the seat belt chime. Really impressed how deep and choppy it sounds especially just idling. Looks beautiful installed, sounds incredible, power gains on the top end, car doesn't even vibrate anymore when you're at a red-light in drive with your foot on the brake. If you're even remotely interested in purchasing this product I'd say just do it, no matter how I look at it this exhaust it was an upgrade in every way.

Alex

07/08/2023, 06:21 PM

Comment
I installed the 80mm CBE almost a year ago (it shipped with the new midpipe hanger to help with the driveshaft issue) and it has never hit or scraped my driveshaft. I am / was impressed with the build quality and welds, and as long as you follow directions, the exhaust tips will stay on if you put em on right. I have not had any exhaust leaks, but, again, I did follow the instructions to a "T". There is no need to weld them like some people claim. The sound is great, and in my honest opinion, it is not excessively loud- but it is considerably deeper and has a certain "growl" to it with minor burbles on idle. To be fair though, I haven't heard my Turbo 3 being driven by me so all I really have to guage its loudness is cold starts and cabin noise lol.

Be warned, if you don't like noise, there is a slight drone at 70+mph, but then again, if you didn't want to hear your car then why would you get this 80mm exhaust in the first place? Other than that, there is no drone on regular roads and it's perfect for a daily driver looking for an "oem plus" feel.

Matthew Archer

08/27/2023, 05:29 PM

Comment
This is a very high quality exhaust with no drone that's not too quiet or too loud. Corksport's instructions made the installation process straight forward and easy.

Jay Anderson

10/10/2023, 07:45 PM

Comment
Purchased this a week ago and it came in today. I'm blown away!!!! Like dang, this surpassed my expectations! Installed it in over 2 hours pretty much like the instructions said it would take. Man this thing, it's like the missing link to the car! I can't even fathom how I was driving before without it a whole year before today. Loud head turning cold starts, downshifting sounds absolutely incredible, low-mid range this thing seems to have taken off the training wheels completely and just takes off full force with the SRI amd JB4 Installed on map2 with 93oct. The drone isn't really too bad, you can't hear much of it or the exhaust while steady accelerating if you're blasting music past like volume 40 with windows up but man this thing is top notch! Quiet enough too while gently cruising and barely putting foot on pedal in a 25mph zone that a cop behind me for a mile didn't pay much attention and let me be. Just like the intake...it's very loud when you want it to be and more quiet when you want it to be mostly. Overall though the nice consistent rumble just makes the turbo feel alive. It's like these turbo 3 should have already come with this via factory. Yes, it's significantly louder than the OEM exhaust, enough to put a smile on your face and rumble your seat but not ear shattering loud that it will disrupt your daily commute or piss off neighbors. You will definitely be heard though and noticed more driving with this exhaust so keep that in mind. But anyways, 5/5 stars!!! Bravo Corksport, can't wait to buy another mod because all of them are S+ tier so far and very fun to install!!!!!!

Conner Davidson

01/17/2024, 03:14 PM

Comment
Such an amazing addition to the car. Upon arrival first thing I noticed was how amazing the welds were. Was beyond excited to install. Installation was super easy with the instructions they provide. The first start up dropped my jaw. Videos do not do this exhaust justice. In person I noticed a deeper tone which made the car sound a lot more aggressive. It’s not too loud which is perfect, but when you get on it, it sounds amazing. Must buy for anyone who wants to modify their car!

JDollar

04/13/2024, 01:48 PM

Comment
Just finished install on my sons 21, it now sounds like it should! Perfect tone, not to loud, just loud enough you know a sports car is nearby!! Quality workmanship and build, 2hr install was about right!! Woke this little car up great!!

Shawn

06/02/2024, 03:33 PM

Comment
got this installed over the weekend with the intake from corksport.. very happy with the sound this has unleashed especially with the turbo.. def accelerates a bit stronger than before .. however, driver side exhaust hanger seems to be a quarter to a half inch too short as its almost resting against my bumper.. however the passenger side is perfectly flush.. is this a common thing for other guys with this exhaust for the sedan?

Vance DeShong

07/15/2024, 04:53 PM