HKS GTIII-4R Turbine 0.81 A/R WG (14001-AK033)

Regular price $2,808.00 USD Sale price $2,808.00 USD Regular price $3,120.00 USD
Sale 10.0% $312.00 USD (10.0%)
Special order - Ships in 5+ weeks
SKU: hks14001-AK033
Product Description

Recent fuel efficiency and emissions regulations have spurred the development of turbo technology, which has been adapted for tuning. GTIII turbine series are paired with MHI brand CHRA manufactured using cutting-edge technology. The aluminum-forged impeller enables a significant boost at low airflow ranges while preventing surging. The housings designed by HKS make use of the technology, experience, and know-how accumulated through many years of turbocharger innovation. This unique design increases turbine efficiency while reducing surging. The combination of the best turbine blades and the best housing results in an incredibly adaptable turbo. The increased turbine efficiency makes this conventional floating metal type turbine similar to a ball bearing type.




  • A successor model of the TO4Z. Compact in size, but capable of over 700PS
  • Highly reliable MHI high-performance CHRA & highly durable aluminum forged impeller is well-balanced
  • Ported shroud function is selectable using an adapter
  • Replacing the position of the bolt securing ported shroud is able to keep the intake air path to reduce surging
  • Impeller wheel rotation sensor compatible
  • Easy replacement with TO4Z series turbine and the turbo kit using TO4Z


  • Power Rating: 700PS (~690HP)
  • Turbo Flange: T4
  • A/R Options: 0.81 or 1.00
  • Bearing: Journal Bearing

To provide faster delivery and turn around time; Kami Speed ships products out from different warehouses throughout the United States. Usually averaging 1-4 business days for processing prior to shipping.

Depending on the package, we ship using different carriers according to the item's location, content, and size.

Freight truck & international items, will require up to 7 business days to ship due to size and logistics.

All orders made after 3:00pm ET will be shipped or processed the next business day.

Unless otherwise noted as "In Stock" or exact ETA. Special Order items have an ETA of 5+ weeks.

Orders over $500 will ship insured and over $1,000 with signature and insurance in order to guarantee delivery. Orders over $1000 may not be able to ship to a different address not listed as the billing address or confirm payment address from the form of payment used. Orders with suite numbers, different billing, or apartment numbers will require signature if valued over $100.

All international orders outside of the USA are subject to duties and taxes fees per your countries jurisdiction and determined by customs.
Kami Speed serves the right to ship using an alternative method if we see it fit, in order to expedite shipping and reduce your rate depending on product value.

Processing and logistics on in stock international orders can take up to 7 business days to process & ship.

In stock, non special order items can be returned within 30 days of the product arriving to your house or place of work.
Returns will NOT be accepted on Clearance Items, Final Sales, Special Orders, Opened, Installed, Incomplete, or Otherwise Used Products. In order to initiate a return, an RMA number must be requested and approved via e-mail. All returns will be subject to a 20% restocking fee minus complete shipping cost (roundtrip).

Any processed orders that have not shipped will incur a 6% cancelation refund fee unless the product was not available to ship within a timely manner. No fee will be incurred if used as store credit.

For complete details on our return policy, please see our Help and FAQ link under HELPFUL INFO.

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