EWG Upgrade Kit - CST4 & CST5 Turbo

EWG Upgrade Kit - CST4 & CST5 Turbo

Corksport
Turbocharger Fitment
Dumptube
Price
Regular price $449.99 USD
Regular price Sale price $449.99 USD
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External Wastegate Turbo Housing

Utilizing an External Wastegate with your CorkSport Turbo just got a whole lot easier! Introducing the EWG Turbine Housing for the CorkSport CST4 or CST5 Turbos. This will allow you to replace your internally wastegated hot side and utilize an external 44mm wastegate. The external wastegate will bolt to the hot side of the turbo with the included elbow and V-band clamp.

Benefits of going with EWG are better boost control, ease of accessibility to service/change the springs and amazing screamer pipe noises!

Externally Wastegated (EWG) hot side set up includes the necessary EWG installation elbow pipe & V-band clamp.

Don't forget the direct-fit dumptube for a quick and easy install. No custom fabrication needed and you save $10 if you buy now.

 


The CorkSport Advantage
mazdaspeed 6 external wastegate turbo housing

Performance Focused

The CorkSport EWG housing takes our already great CST4 and CST5 turbine housings and optimizes them for use with an external wastegate. Not only do you get the port itself to run the EWG, swallowing capacity has been increased to maximize peak exhaust flow. The CST4 gets an A/R change as well, moving from the 0.66 with the IWG housing to 0.82 with the EWG. While there is a very minor spool penalty, you gain increased power potential!

 

mazdaspeed external wastegate housing

Fitment Inspired:

The EWG port location was specifically chosen to optimize EWG functionality. With the EWG inlet tangent to the scroll of the turbine, we gain fantastic boost control and allow clearance for the OEM oil drain line. Coupled with the supplied elbow and clamp and you get the flexibility to work with most downpipe setups!

 

mazdaspeed3 external wastegate housing

Materials & Manufacturing:

Like all our other turbine housings, the CS EWG housings are made from cast high silicone molybdenum that is resistant to heat cycling cracks and will stand the test of time. The supplied elbow and optional dumptube are both made from T-304 stainless steel and TIG welded together. Even the supplied v-band clamp is stainless steel! Finally, each v-band flange is precision machined for perfect fitment and a great seal.

 

Additional Features
    • Compatible with:CorkSport CST4 Turbocharger & CorkSport CST5 Turbocharger
    • Designed in America: Designed in Vancouver, Washington, in the Pacific Northwest.
    • CorkSport Service & Support:Receive a 1-year warranty, full-color installation instructions, all of the needed installation hardware, and knowledgeable telephone installation support.

Advisory
  • External wastegate is NOT included.
  • EWG designed for 44mm TIAL or equivalent external wastegate.
  • External wastegate is NOT included with turbo.
  • EWG dumptube/screamer pipe is NOT included with turbo.
  • Some aftermarket and all OEM downpipes will NOT clear the EWG elbow that is included with the CorkSport EWG Turbine Housing. Check the "Fitment Notes" tab for details.


How To Install Your CorkSport EWG Housing

It will take you 5 hours to install the CorkSport EWG Housing with our easy-to-use instructions.



XXX installation instructions

 

5 Hour Install Time

5 Hour Install Time

 
Difficulty: 4/5

4/5 Difficulty

 
1-Year Warranty

1-Year Warranty

 
No CEL

No CEL

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

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.

Electronics

All Electronics are final sale!

TERMS AND CONDITIONS

Please have your mail box or junk mail box checked for status updates.

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. 

Disclaimers:

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.

Privacy Policy

We are committed to the privacy of the client's information. OSS Motorsport does not, and will not, distribute, disclose or sell any of the client's personal information to third parties, other than as required by law or as necessary to process a payment. During the process of providing payment information, client may be asked to provide his/her name, address, e-mail, phone number, and where payment is concerned, credit card number, billing address, security code and expiration date.  When users access our site, we may automatically collects information, including IP addresses and information regarding the client use of the site through cookies or automatic registration and maintenance of the client contacts to us and preferences.

Questions about the Terms of Service should be sent to us at info@oss-motorsport.com.

 

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