Kinugawa Turbo 4" TD06SL2-25G for MAZDA Mazdaspeed 3 6 MPS MZR DISI 2.3L CX7 CX9

• Priority: Highest
• Impact on Spool Time: The A/R ratio directly influences the exhaust gas velocity and energy reaching the turbine wheel. A smaller A/R ratio generally leads to faster spool-up due to increased exhaust gas velocity, but it can also limit top-end power. A larger A/R ratio results in slower spool-up but can support higher power levels at higher RPMs.

• Priority: High
• Impact on Spool Time: The size and design of the turbine wheel affect its inertia and how efficiently it extracts energy from the exhaust gases. A smaller and lighter turbine wheel will typically spool up faster, but it might have lower peak power potential. The blade design also plays a role, with some designs optimized for faster spool-up.

• Priority: Moderate
• Impact on Spool Time: While the compressor wheel itself doesn't directly impact spool time, its design and size influence the overall balance and efficiency of the turbocharger. A larger compressor wheel requires more energy to spin, which can slightly increase spool time. However, a well-matched compressor wheel can improve overall efficiency and reduce backpressure, indirectly aiding spool-up.

PAYMENT AND SHIPPING POLICIES
1. We will ship your order out in 3~5 working days after getting your payment and complete shipping address, including the Phone number. Only parts of KINUGAWA brand sold on this official website will be applied DHL Duties & Taxes Paid (DTP Service) for all orders. This service allows duties, taxes, or other regulatory fees to be charged to the Shipper (wholesale accounts except), rather than the Receiver at the destination, and make exporting your shipment even faster. Charges apply whenever the shipper requests that duties, taxes, or other regulatory fees be paid outside of the destination country, but the P.O. and Russia address will not be accepted. (EMS will ship the P.O. and Russian Federation (RU)*4 and duties, taxes, or other regulatory fees are the buyers' responsibilities). Please do not use your agent to declare customs duties, otherwise we will not be responsible for related expenses. We offer free shipping for order that has a total amount over USD 399 and the shipping address within Zone 1~7 (please check the 5. DHL Zone Table).
2. All packages are double checked and well packed by our warehouse staff to make sure they are safe on the delivery. Combined Shipping is available for most items and we always try our best to save freight for our customers. If you have any questions or requests about international shipping, import tax, and declared value, please contact us by email: support@kinugawaturbosystems.com
3.  PayPal payments must be sent to paypal@kinugawaturbosytstems.com; No order will be shipped out if PayPal payment is still pending.
4. Local Bank Wire (T/T): Bank wire is also accepted. The default bank A/C is Bank of America (BOA) and currency is USD. We also offer EUR, JYP, AUD, CAD and GBP local bank accounts If you want to make payment by T/T, please email us for wire details. Email: support@kinugawaturbosystems.com

5. DHL Zone Table:

China (CN) *1
Shenzhen (SZX), Chaoshan & Huizhou (SWA), Zhujiang Delta Area (ZUH), Guangzhou (CAN), Dongguan (DGM)
China (CN) *2
Rest of China (CN)
USA (US) *3
Delivery only to Alaska and Return from all states by FedEx

PAYMENT AND SHIPPING POLICIES
1. We will ship your order out in 3~5 working days after getting your payment and complete shipping address, including the Phone number. Only parts of KINUGAWA brand sold on this official website will be applied DHL Duties & Taxes Paid (DTP Service) for all orders. This service allows duties, taxes, or other regulatory fees to be charged to the Shipper (wholesale accounts except), rather than the Receiver at the destination, and make exporting your shipment even faster. Charges apply whenever the shipper requests that duties, taxes, or other regulatory fees be paid outside of the destination country, but the P.O. and Russia address will not be accepted. (EMS will ship the P.O. and Russian Federation (RU)*4 and duties, taxes, or other regulatory fees are the buyers' responsibilities). Please do not use your agent to declare customs duties, otherwise we will not be responsible for related expenses. We offer free shipping for order that has a total amount over USD 399 and the shipping address within Zone 1~7 (please check the 5. DHL Zone Table).
2. All packages are double checked and well packed by our warehouse staff to make sure they are safe on the delivery. Combined Shipping is available for most items and we always try our best to save freight for our customers. If you have any questions or requests about international shipping, import tax, and declared value, please contact us by email: support@kinugawaturbosystems.com
3.  PayPal payments must be sent to paypal@kinugawaturbosytstems.com; No order will be shipped out if PayPal payment is still pending.
4. Local Bank Wire (T/T): Bank wire is also accepted. The default bank A/C is Bank of America (BOA) and currency is USD. We also offer EUR, JYP, AUD, CAD and GBP local bank accounts If you want to make payment by T/T, please email us for wire details. Email: support@kinugawaturbosystems.com

5. DHL Zone Table:

China (CN) *1
Shenzhen (SZX), Chaoshan & Huizhou (SWA), Zhujiang Delta Area (ZUH), Guangzhou (CAN), Dongguan (DGM)
China (CN) *2
Rest of China (CN)
USA (US) *3
Delivery only to Alaska and Return from all states by FedEx

RETURNS AND REFUND

1. Kinugawa Turbo Systems will employ its best efforts to fill customer’s orders promptly on acceptance but reserves the right to allot available inventories among its warehouses and factories at its discretion.

2. Except for Kinugawa Turbo Systems’ products that are defective at the time of sale or in one (1) year, Kinugawa Turbo Systems shall not be obligated to accept any of Kinugawa Turbo Systems’ products returned.

3. Unless specs are explicitly stated on the order list, Kinugawa Turbo Systems would only issue an exchange if an incorrect item is shipped.

4. All returned items must be in brand new condition, which means the item is never installed and kept in the original package. Customers are responsible for the return shipping fee and must initiate returns within 30 days. A restocking fee of 20% will be applied. However, free return labels will be provided for defective products that are incorrect or damaged during shipping by the carrier.

5. A Return Merchandise Authorization (RMA) Number must be received from Kinugawa Turbo Systems before an item is returned. To receive a return authorization, please contact Kinugawa Turbo Systems Sales Representative via phone or email for the RMA Application Form and an approved RMA Number. The RMA Number must be prominently displayed on the outside of the package containing the returned merchandise. Also, defective merchandise must be returned freight prepaid.

6. Any unauthorized returns or returns not having the RMA Number will be rejected at Kinugawa Turbo Systems Return Department and sent back to the sender at the sender’s sole cost.

7. When shipping detective items back to Manufacture and Rebuild Center, please use the following address:

Company Name: Kamak Dynamics Co., Ltd.

Address: No.135-67, Caoxi Rd., Caotun Township, Nantou County 54260, Taiwan (R.O.C.)

TEL: +886-49-2315117

8. The carrier is responsible for all items damaged in transit. Please contact Kinugawa Turbo Systems Sales Representative for damage claim information and keep all of the original packing materials. The distributor will be asked to hold the damaged product for ten business days for the damage inspection and responsibility verification. Please do not return the package to Kinugawa Turbo Systems if the Distributor is unable to file a claim with the carrier by saving packing material and allowing the carrier to inspect the damaged goods, Kinugawa Turbo Systems will not be able to assist with any issue of damage in transit.

9 Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund. If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

10. Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted. Next, contact your bank. There is often some processing time before a refund is posted. If you’ve done all of this and you still have not received your refund yet, please contact us by email support@kinugawaturbosystems.com

1. Touch:  Anti-Counterfeit filaments, randomly allocated on the Anti-Counterfeit Tag, are solid and 3-dimensional. Consumers can touch, feel and look at the Tag to verify its authenticity.

Precisely balancing our turbochargers is a key critical factor for longevity and performance. Good balance also improves acoustics. Subsequent great care is taken with all Kinugawa turbochargers in this regard. Firstly parts are balanced at slow speeds up to 2800 RPM in multiple planes using our single-parts machine. These parts assembled to cartridges (C.H.R.A) are dynamically balanced yet again, but this time at up to 100,000 RPM in multiple planes using our in-house VSR machine to acquire the ultimate equilibrium to a standard far higher than OEM. We supplied a balance test result document.