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2014-2018 Mazda 3 80mm Cat-Back Exhaust

 
Price: $1,149.99
Price in points:  What are Points? 1150 points
AXM-6-102-10
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PRE-ORDER ONLY - Hatchbacks Expected to ship ~July. Sedans are in stock.

Wake up your 2014-2018 Mazda 3 with the CorkSport 80mm Cat Back Exhaust. The next step up in volume from the existing 60.5mm CorkSport exhaust; the 80mm variant offers a great sounding, loud exhaust that doesn’t ruin the daily drivability of the MZ3.

More power, better looks, and a sound that changes a boring daily driver into a fun backroads car all come in an easy-to-install package. Plus, the large diameter piping future-proofs your ride for upcoming CorkSport parts.

Read The Blog80mm Gen3 Mazda3 Cat-Back Exhaust



We strongly encourage you to watch the product video below to get a sense of the volume and unique tones that come with this exhaust! For full information, check out the details below.

2014-2018 Mazda 3 80mm Exhaust system video

The CorkSport Advantage
2014-2018 Mazda 3 80mm cat back exhaust

Performance Sound

The sound is the truly unique feature of the CorkSport 80mm Cat Back Exhaust. The 80mm piping really lets the SkyActiv-G engine sing, even more so than the CorkSport 60.5mm variant. The increase in volume also comes with some fantastic & unique tones that make hitting a curvy road exciting. We didn’t just copy the original 60.5mm design though and make the pipes bigger, we went through multiple resonator designs to get the best sound without ruining the drivability of the Mazda 3.


dyno proven power from the 80mm Mazda 3 cat back exhaust

Adding Power & Room for future Mods

By replacing the restrictive stock exhaust with large-diameter mandrel bent piping and high-flowing resonators, we are able to gain some much-needed horsepower. When compared back to back with an OEM exhaust, the CorkSport 80mm made 5-7WHP. No tuning or part changes other than the exhaust swap. This will pair well with future GEN3 parts in the works that will probably need that extra volume for optimal power. And whoever said planning ahead was a bad thing?


2015 Mazda 3 cat back exhaust with 4 inch tips

Style Boost

The aggressive sound comes with an aggressive look to match. Each exhaust tip has been enlarged to 100mm (just under 4”). For the hatchback, these tips are dual wall & slant cut to match the bumper shape and fill out the cutouts. For the sedan, single wall tips are used to ensure water and debris don’t build up in the turn-down. In each case, the exhaust accents the rear of the car to give an aftermarket look that is stylish and the way it should have come from Mazda.


Mazda 3 performance cat back exhaust

High Quality Materials & Manufacturing

Each exhaust is made from fully polished T-304 stainless steel that is TIG welded together. This combo makes for a great-looking exhaust that will last as long as your Mazda. All the flanges are laser cut for consistency and 9mm (~3/8”) thick to prevent warping. This package is wrapped up with high-strength hardware, full-color install instructions, and all the gaskets you need for a painless install.


Check Out All CorkSport Mazda3 Exhausts

view all Mazda 3 Exhausts

Additional Features
  • Compatible with: 2014-2018 Mazda 3 2.0L or 2.5L SkyActiv: 5-door Hatchback currently available. 4-door Sedan fitment coming Spring 2019
  • Designed in America: Designed in Vancouver, Washington, in the Pacific Northwest.
  • CorkSport Service & Support: 2-year limited warranty, full-color installation instructions, all necessary components, and knowledgeable telephone support at (360) 260-2675.

advisory notice
  • NVH (noise, vibration and harshness) in the cabin of your vehicle will be significantly increased by the installation of this exhaust. We highly recommend you view the above video to hear the exhaust note inside and outside the vehicle. The inside vehicle footage starts at 2:54 If you have any questions about the expected noise from the performance exhaust, please give us a call, at (360) 260-2675, so we can better help you understand what to expect from a performance exhaust. Please Note: Due to the nature of the product, all sales are final if the part has been installed

How To Install Your CorkSport Mazda3 80mm Cat-back Exhaust

It will take you three hours to install the CorkSport Mazda3 80mm Catback Exhaust with our easy-to-use instructions.

2 Hour Install Time

2 Hour Install Time

Difficulty: 3/5

3/5 Difficulty

2-Year Warranty

2-Year Warranty

No CEL

No CEL

installation instructions

Will this work for a 2018 1.5L model? Otherwise, do you have an axle back to recommend?

Asked by Aaron | 10/23/2025, 08:50 AM | 1 answer(s)

For people who live in Europe, can they get this exhaust with an E-approval and a paper certificate for the car inspection?

Asked by Amber Van Craenenbroeck | 02/13/2025, 11:28 AM | 1 answer(s)

Would it for 2015 Mazda6?

Asked by Saad | 10/31/2024, 12:25 AM | 1 answer(s)

Will there ever be made a mid-pipe with high flow catalytic converter to pass emission tests while maintaining performance gains?

Asked by Gianni | 09/29/2024, 11:28 AM | 1 answer(s)

Does this pass the Icelands Co2 emissions test? (The minimum is 250g/km)

Asked by Ásmundur Ari Pálsson | 08/11/2022, 07:05 PM | 1 answer(s)

Is it possible to only order the 80mm midpipe? I already have an axle-back but was looking to spice it up.

Asked by Isaac | 04/26/2022, 03:26 PM | 1 answer(s)

Will I need to tune my car after installing this exhaust system?

Asked by Kevin | 01/30/2022, 12:18 AM | 1 answer(s)

Will this exhaust pass an obd2 emissions check since it looks like a Cadillac converter is being replaced or is that just a resonator

Asked by Morgan Dethorn | 11/30/2021, 07:22 PM | 1 answer(s)

Would this fit in my Mazda 3 astina 2.2L diesel

Asked by Michael | 08/09/2021, 12:56 PM | 0 answer(s)

What is the weight of the product?

Asked by VP | 01/24/2021, 10:07 PM | 1 answer(s)

If I buy this exhaust, will I have to retune my 2017 Mazda 3?

Asked by Samuel Atchison | 11/06/2020, 03:55 PM | 1 answer(s)

Does the 80mm also replace the second catalytic converter as mentioned with the 60mm catback?

Asked by Christian  | 10/18/2020, 12:29 PM | 1 answer(s)

will this fit the 2020 mazda3 hatchback?

Asked by Abner Chimalpopoca | 08/03/2020, 06:31 PM | 1 answer(s)

Is in stock?

Asked by simba vang | 07/07/2020, 07:54 PM | 1 answer(s)

Would the hatch back set up work for the sedan I would like the exhaust tips to come straight out the back not point down doe to my car being lowered

Asked by Jesse Emond | 06/03/2020, 11:32 PM | 1 answer(s)
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:

2014-2018 Mazda 3 2.L & 2.5L
  • 2014 Mazda 3
  • 2015 Mazda 3
  • 2016 Mazda 3
  • 2017 Mazda 3
  • 2018 Mazda 3