2021+ Mazda 3 Turbo 80mm Cat Back Exhaust System

Corksport SKU: AXO-6-102-10
2021+ Mazda 3 Turbo 80mm Cat Back Exhaust System

2021+ Mazda 3 Turbo 80mm Cat Back Exhaust System

Corksport SKU: AXO-6-102-10
Vehicle Model
Regular price $1,099.99 USD

This item is sold out in Winnipeg. However, may be in stock at one of our warehouses! Email us to get an ETA! sales@ossmotorsport.com

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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 80mm Cat back Exhaust does just that, all while being virtually drone free so highway cruising and driving around town is still enjoyable.

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 (Coming Soon).

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

The CorkSport Advantage

Best Mazda 3 Turbo Cat Back  3-inch Exhaust

Optimized Sound:

The CorkSport 80mm 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 drone 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.

  • Mazda 3 Turbo Cat Back Exhaust Close up

    Horsepower Gains:

    The Cat Back has a noticeable power increase after installation. While we wait on our AWD dyno to arrive, on-street testing has shown improvements in airflow and response when switching from the OEM exhaust to the CS 80mm Cat Back on a Mazda 3 Turbo model. 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 CBE. 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 fit to the vehicle.

    2021+ Mazda 3 Turbo 80mm Exhaust material

    Materials & Manufacturing:

    The CorkSport 80mm CBE 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.

    Product Advisory Note
    • 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.
    • 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 hour to install.


    2 hour Install Time

    2 hour Install Time

    Difficulty: 2/5

    2/5 Difficulty

    2-Year Warranty

    2-Year Warranty

    No CEL

    No CEL

    2019-2023 Mazda3 Installation Instructions for a hatch Wing

    Tracking will be sent once it leaves our warehouse.

    For Canadian shipments, if the item is at a US address, the item needs to be brought into our Winnipeg warranty prior to shipping out to the destination.

    Tracking information will be received once it leaves Winnipeg.

    Please note, average turn around time for this is roughly 2 weeks, if the product is in stock.

    Absolutely NO refunds/exchanges on special order items. If return of a non special order item is requested, customer must pay shipping and it must be requested within 14 days of purchase. 

    Any orders not picked up by the customer within 15 days after notification of arrival becomes property of OSS Motorsport Ltd. no credit or refund will be given.

    Customers that remove product(s) from OSS Motorsport will have been deemed to agree with all of the above terms and conditions. All items sold are for Off Road Use Only.

    All performance modifications are done at your own risk and may void your warranty.


    Unwanted items are subject to a 20% restocking fee, in addition to the return shipping to our warehouse(if applicable). Used items cannot be returned.


    All Electronics are final sale!


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    Shipments, returns & refund

    During the payment process, we provide delivery options with different delivery companies with which we have no contractual relationship. We offer commission free this added service so the client can receive its order without having to round trip to our warehouse. If there is any problem with the delivery, it is the consignee responsibility to contact the delivery company he/she dealt with directly. The carrier provide a limited insurance of 100$. If you need more, please contact us prior to purchase as we will get you the quotation for extra insurance from the carrier you will select.

    NO return accepted. Exchange upon approval and proof of factory default.

    Partial or full refund requests are subject to 5% administrative fees. Refund is immediately issued upon cancellation and a confirmation email is sent. However, depending on the payment method used, it may take one (1) to ten (10) days for the refund to appear in client account.

    Special orders are non-refundable.

    United States orders may be subject to Custom fees and tax as we ship from Canada. 


    Some products may be used for off-road only. Customer is responsible to check with his/her local/state laws and ordinances.

    We are not responsible if the client ordered the wrong item, which does not work on its vehicle.

    All parts required professional installation, there is no return or exchange if the client does not know how to install it him/herself.

    OSS Motorsport is not responsible for defective or damage caused by unprofessional installation or misuse of the product.

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