Designed for setups using a 44mm EWG on the CST Turbine Housing and using a CorkSport 3.5 Inch Downpipe and/or 3.5 Inch Turbo-Back Exhaust System. This is by no means required, but does simplify the installation process so you don't have to get a custom dumptube fabricated.
![Additional Features](https://corksport.com/public_html/Product%20Listings/_Product%20Listing%20Images/CS-Website-Refresh-Product-Subhead-Features.jpg)
- Compatible with: Mazda CST4 Turbocharger, CST5 Turbocharger and CST6 Turbochargers equipped with the CorkSport EWG Turbine Housing
- Compatible with: Required when using the CorkSport 3.5" Exhaust and using an EWG on the CST Turbine Housing.
- Designed in America: Designed in Vancouver, Washington, in the Pacific Northwest.
- CorkSport Service & Support: 1 year limited warranty, full-color installation instructions, all necessary components, and knowledgeable telephone support at (360) 260-2675.
![](https://corksport.com/public_html/Product%20Listings/_Product%20Listing%20Images/CS-Website-Refresh-Product-Subhead-Advisory.jpg)
- REQUIRED if using a CorkSport 3.5" Downpipe and EWG on the CST EWG Turbine Housing.
- Dumptube designed for 44mm TIAL or equivalent external wastegates.
- External wastegate is NOT included.
- Turbine housing is NOT included.
- This dumptube is designed for the turbocharger mounted EWG. Do not purchase if you have the EWG mounted to the exhaust manifold.
It will take you less than 1 hour to install the CorkSport EWG Dumptube with these easy-to-use installation instructions.
![1 Hour Install Time 1 Hour Install Time](https://corksport.com/public_html/Product%20Listings/_Product%20Listing%20Icons/New%20Icons%20-%2010-2017/CS-Website-Refresh-Product-Icon-1HR.png)
1 Hour Install Time
![Difficulty: 1/5 Difficulty: 1/5](https://corksport.com/public_html/Product%20Listings/_Product%20Listing%20Icons/New%20Icons%20-%2010-2017/CS-Website-Refresh-Product-Icon-Difficulty1.png)
1/5 Difficulty
![1-Year Warranty 1-Year Warranty](https://corksport.com/public_html/Product%20Listings/_Product%20Listing%20Icons/New%20Icons%20-%2010-2017/CS-Website-Refresh-Product-Icon-Years1.jpg)
1-Year Warranty
![No CEL No CEL](https://corksport.com/public_html/Product%20Listings/_Product%20Listing%20Icons/New%20Icons%20-%2010-2017/CS-Website-Refresh-Product-Icon-CELno.png)
No CEL
![how to install the dumptube instructions](images/bonfire_images/install_instructions_button3-1.webp)
![Mazda performance parts financing is available with CorkSport](https://s3-us-west-2.amazonaws.com/corksport.com/images/main/Mazda-performance-parts-financing.jpg)
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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.