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AISIN AZ6 6 Speed Mazda MX-5 RX-8 Close Ratio Dog Engagement Gearset Dogbox
AISIN AZ6 6 Speed Mazda MX-5 RX-8 Close Ratio Dog Engagement Gearset Dogbox
AISIN AZ6 6 Speed Mazda MX-5 RX-8 Close Ratio Dog Engagement Gearset Dogbox
AISIN AZ6 6 Speed Mazda MX-5 RX-8 Close Ratio Dog Engagement Gearset Dogbox
AISIN AZ6 6 Speed Mazda MX-5 RX-8 Close Ratio Dog Engagement Gearset Dogbox
AISIN AZ6 6 Speed Mazda MX-5 RX-8 Close Ratio Dog Engagement Gearset Dogbox
AISIN AZ6 6 Speed Mazda MX-5 RX-8 Close Ratio Dog Engagement Gearset Dogbox
  • SKU: AZ6DOGKIT-MX5
  • Availability: in stock Many in stock Out of stock You can purchase this product but it's out of stock

AISIN AZ6 6 Speed Mazda MX-5 RX-8 Close Ratio Dog Engagement Gearset Dogbox

$5,450.00 $5,999.00
DESCRIPTION

Our gearsets have proven their reliability across various platforms, and it's time to extend this performance to the popular 6-speed Aisin gearbox.

This kit includes everything needed to address common issues with the factory AZ6 transmission... we provide all components as they are all proprietary, some key components we include, gears, shafts, dog rings, hubs, input shaft to suit application, main shaft and propriety custom bearings we designed in some places.

They are made to suit all MX5s with the AZ6 Gearbox. From early 90s till mid 2000s, these kits will only fit the Aisin 6 Speed casings.

The gear ratios for ultimate strength and performance are as follows:

Speedtek Auto Racing Helical Cut Gearset:

  • 1st: 2.88
  • 2nd: 1.97
  • 3rd: 1.52
  • 4th: 1.25
  • 5th: 1.00
  • 6th: 0.85

MX-5 6-Speed Ratios (also applicable to BRZ & FRS):

  • 1st: 3.70
  • 2nd: 2.19
  • 3rd: 1.54
  • 4th: 1.17
  • 5th: 1.00
  • 6th: 0.83

Reverse: 3.43

These gearsets are designed for rapid quick shifts, offering a significantly different experience from the factory Aisin AZ6 synchronized transmission.

This kit ensures your transmission can reliably withstand upto 600 BHP (measured at power to the transmission). Additionally, we have developed a race spec lockout shifter which features a unique design to stop accidental shifting into first gear going from second to third.

We estimate these kits will be completed by mid 2026

*Strictly no refunds on any Pre-Orders, please be mindful we are working at the fastest pace possible.

Our solid 6-month unconditional warranty program for all our manufactured gearsets, you can be confident that your investment is well-protected. 

Our extended warranty program is available, for more information : Extended Warranty Program now Available with our Performance Transmiss – Speedtek Auto Racing

SHIPPING & LEAD TIME
If product Ex-Stock Australia, Product will be sent within 3-5 Business days. If product Not instock AUS, a 3-4 week lead time will apply.
REVIEWS
RETURNS POLICY
We have a 14-day return policy, which means you have 14 days after receiving your item to request a return. To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging, we require you to provide us with the receipt or proof of purchase. To start a return, you can contact us at admin@speedtekautoracing.com. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. The return label paid for by the customer, Items sent back to us without first requesting a return will not be accepted. Please note, a restocking fee of 15% will apply to any returned goods. You can always contact us for any return question at admin@speedtekautoracing.com. Damages and issues: Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right. Exceptions / non-returnable items, Certain types of items cannot be returned, like custom products (such as special orders or personalized items). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item. Unfortunately, we cannot accept returns on sale items (discounted products) or gift cards. Exchanges: The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item. Refunds: We will notify you once we’ve received and inspected your return and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.

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