AZ6 / J160 extra long 6th gear. Suits Nissan Silvia S15 AZ6, Altezza / IS200 J160, Mazda RX8 and MX5 AZ6.

Awesome cruise gear, reducing RPM on the highway.

Depending on what gearbox these gears go into, the ratios slightly change. they are as follows:

J160 ratio: 0.606:1
S15 AZ6 ratio: 0.606:1
MX-5 (Miata) ratio: 0.629:1
RX-8 ratio: 0.629:1

Please note: being an aftermarket gear, they do generate some additional noise compared to the OEM sets. This is normal and they don’t wear any faster.