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Vancouver, WA


M-TH 9A-5P | F 9A-12P | SA-SU CLOSED

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Dumptube Kit for Exhaust Manifold

Price: $129.99
Price in points: What are Points?130 points
Speed up your EWG Mazdaspeed 3 exhaust manifold installation
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To further support the ease of installation and use, CorkSport has developed a direct fit Dumptube Kit for use with the DISI MZR Exhaust Manifold. This is by no means required, but does simplify the installation process so you don't have to get a custom dumptube fabricated. The dumptube kit clears most downpipes, but not all downpipes have been tested.


Additional Features
  • Compatible with: CST4 Turbocharger, CST5 Turbocharger and CST6 Turbochargers equipped with the CorkSport EWG Turbine Housing and CorkSport Downpipes. Most other downpipes will fit, but not all have been tested.
  • 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.

  • Dumptube designed for 44mm TIAL or equivalent external wastegates.
  • External wastegate is NOT included
  • This dumptube is designed for the exhaust manifold mounted EWG. Do not purchase if you have the EWG mounted to the under side of the turbo.

How To Install Your CorkSport EWG Dumptube for the CS Exhaust Manifold

It will take you less than 1 hour to install the CorkSport Exhaust Manifold Dumptube Kit with these easy-to-use installation instructions.

1 Hour Install Time

1 Hour Install Time

Difficulty: 1/5

1/5 Difficulty

1-Year Warranty

1-Year Warranty



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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 with:
CorkSport Cast Mazdaspeed Exhaust Manifold & Tial 44mm Wastegate