The New & Bigger 80mm Cat Back Exhaust by CorkSport Performance

We are excited to announce that the CorkSport Mazda 3 80mm Cat Back Exhaust is ready for your AWD 2021+ Mazda 3. We have gone through multiple iterations of the CBE during its development to ensure it meets all of our requirements. The CS 80mm CBE replaces your factory mid-pipe and muffler section to provide extra sound and power from your Mazda. The large 80mm diameter pipe adds a deep and refined tone and a more aggressive note once it gets up in the RPM range.

Note: Review the Advisory Notes on our product page regarding 2019+ AWD Non-Turbo Models.

2021 Mazda 3 Cat Back Exhaust 80mm
Mazda 3 80mm Cat Back Exhaust

Designing the 80mm Cat Back Exhaust

The main goal of the 80mm exhaust was to free up the 2.5L Turbo engine and eliminate the large restrictions that are present in the factory exhaust. This restriction was first taken care of by the obvious increase in the exhaust diameter, going from ~61mm to 80mm which is a gain of over 70% in cross sectional area. The next step that was taken was to remove the factory resonator found in the midpipe. The OEM design was replaced with a flow thru dual chamber design that provides great drone reduction while minimizing the impact on flow characteristic. Another resonator of the same layout is located in the axleback section to further decrease drone levels while refining the exhaust note. When put all together the increased pipe diameter and high flow resonators gives the Mazda 3 Turbo the sound we all wished it came with from the factory.

Underside of a Mazda 3 with Installed 80mm Cat Back Exhaust
Underside of a Mazda 3 with Installed 80mm Cat Back Exhaust

Quality OEM Fitment & Installation

Installation and fitment of the CorkSport 80mm Cat Back Exhaust is another area that we focused heavily on to ensure a quality experience. The exhaust sections started with the OEM counterparts and were then adjusted to fit the larger diameter pipe, so no exhaust rattles or interference issues with other components occur. For the larger axle back section, we retained all four hanger locations to make sure that the exhaust stays in position and isn’t allowed to move around too much during hard driving.

Closeup of the Cat Back Exhaust fitting like OEM
Closeup of the Cat Back Exhaust fitting like OEM

Style That Matches the Sound

Our approach was the same as the CS 63.5mm exhaust. All of the tips are 100mm in diameter and are designed to match the Mazda model you own.  For those that have a hatchback with the appearance kit, the tips are longer to account for the larger bumper and fill out the cutouts better.  The larger design provides a style for your Mazda that matches the sound of your car. 

No Mazda Aero Kit Hatchback with Hatch Tips Installed
No Mazda Aero Kit Hatchback with Hatch Tips Installed
Mazda Aero Kit Hatchback with Aero Kit Tips Installed
Mazda Aero Kit Hatchback with Aero Kit Tips Installed

Quality Materials & Production

We have kept the same great construction of previous CS exhausts which utilize 304 stainless steel, is mandrel bent, and TIG welded. This gives the CS 80mm CBE excellent corrosion resistance that will hold up in harsh environments. The exhaust hangers also feature extra bracing to ensure they remain secure during hard driving. The exhaust is polished to a mirror-like finish and includes all the necessary hardware to make the installation trouble-free.

2023 Mazda 3 Turbo Sedan Performance Exhaust
Close up of the Large Exhaust of the 80mm Cat Back Exhaust

That covers the major details on the CorkSport Mazda 3 80mm CBE. Watch for our future video sound clips and don’t be shy to contact us with any questions!

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The New & Bigger 80mm Cat Back Exhaust by CorkSport Performance
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The New & Bigger 80mm Cat Back Exhaust by CorkSport Performance
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We are excited to announce that the CorkSport Mazda 3 80mm Cat Back Exhaust is ready for your AWD 2021+ Mazda 3.
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CorkSport
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2 Replies to “The New & Bigger 80mm Cat Back Exhaust by CorkSport Performance”

  1. Can we get a video posted of the exhaust or even charts? It’s been out for more than a week and there hasn’t really been a lot of update from the official brand releasing the part.

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