CorkSport CST4 Turbocharger - 2007-2013 Mazdaspeed 3, 2006-2007 Mazdaspeed 6 & 2007-2012 CX-7

CorkSport SKU: GEN-6-777
Wastegate
Price
Regular price $1,37400
Regular price Sale price $1,37400
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No inventory information available. Contact us at sales@ossmotorsport.com or 431-831-0100 for details.

✓ No import fees or duties at delivery

Most CorkSport parts are ordered for you. Average ETA is 3 to 4 weeks, and some back-ordered items take 1 to 2 months. Contact us before ordering if you need a part urgently.

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A bolt-on big turbo for the 2.3L DISI that uses the stock flanges and supports roughly 250 to 450 whp. The CST4 pairs a billet MHI 18G compressor wheel with a TD05H high-flow turbine on an MHI journal bearing CHRA, and comes with either an internal wastegate housing or an external wastegate housing for 44 mm gates.

Features

  • Billet MHI 18G compressor wheel, about 50 lb/min, rated to 30 psi
  • MHI TD05H high-flow 9-blade turbine wheel
  • MHI journal bearing CHRA with 360-degree thrust bearing
  • Stock flange fitment on both the compressor and turbine sides
  • IWG version: 0.66 A/R housing with billet actuator and ceramic-coated heat shield
  • EWG version: 0.82 A/R housing for 44 mm wastegates with V-band clamp and elbow
  • Free CorkSport 3.5 bar MAP sensor included

Specifications

  • Full boost by about 3,500 rpm, pulling to around 7,000 rpm
  • IWG actuator spring preset around 14-16 psi; works with the factory boost solenoid (bleed) or a 3-port solenoid (interrupt)
  • Included MAP sensor reads accurately to about 37 psi
  • The turbo cannot be clocked; an IWG turbo can be converted to EWG later

What's included

  • CST4 turbocharger with the selected turbine housing
  • Gaskets, studs and installation hardware
  • 3.5 bar MAP sensor
  • Full-colour installation instructions

Fitment

  • 2007-2013 Mazdaspeed 3
  • 2006-2007 Mazdaspeed 6
  • 2007-2012 Mazda CX-7 2.3L turbo
  • EWG version: wastegate, screamer pipe and dump tube not included; stock downpipes do not fit the EWG version
  • EWG downpipes confirmed: CorkSport catted and non-catted (MS3 and MS6), plus Cobb catted, Depo non-catted and XS Power non-catted on the MS3. Manzo/eBay-style and CPe downpipes need a custom elbow and dumptube.
  • IWG version works with the stock downpipe, though an upgraded downpipe unlocks more

Installation

About 5 hours, rated 4 out of 5. Professional installation recommended. No check engine light once properly tuned.

Good to know

  • Requires upgraded high-pressure fuel pump internals and a professional custom tune (Accessport or Versatuner). Off-the-shelf maps, including the stock Stage 3 Accessport map, are not suitable.
  • A 3-port boost control solenoid and a 3 in or larger intake are recommended; the factory intake caps it at about 300 whp. Auxiliary fuelling is needed for peak power.
  • For off-road and competition use.
  • Replacement CHRA cartridges are available; ask us.
  • Warranty: 1 year limited.

CorkSport part number: GEN-6-777. Not sure it fits your car? Send us your VIN and we will confirm before you order.

Why buy from OSS Motorsport

OSS Motorsport is a Manitoba performance shop, and we can source parts for just about any make. We ship Canada-wide with CAD pricing. CorkSport parts ship from the US warehouse and usually arrive in about 2 weeks, with no duties or brokerage fees to pay at the door. Questions? Email sales@ossmotorsport.com or call 431-831-0100.

Shipping information

In stock at our Winnipeg warehouse: ships in 1 to 3 business days.

In stock in Canada: ships from one of our Canadian warehouses in 3 to 5 business days.

In stock at our US warehouse: we bring it into our Winnipeg warehouse first, then ship it to you. 

This takes about 2 weeks.

Special order: contact us at sales@ossmotorsport.com or 431-831-0100 for an ETA.

Tracking is emailed as soon as your order ships.

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.

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

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Questions about the Terms of Service should be sent to us at sales@ossmotorsport.com.

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