NISformance.com

R31 Transmission 350Z G35 370Z G37 CK/JK UPDATED 3rd gear INNER RING!!! 2-5-2026 We received a new inner ring which fixes the issues with 3rd.

If you purchased from us we will send this updated inner ring at no charge. Send us a email with your order number to receive the updated inner ring. [email protected] (please no txt, or social media, email only to make it easier to keep up with)

KITS are now back in stock and available! If you purchased all gears except 3rd , you can now purchase 3rd gear synchro by itself.

https://www.nisformance.com/Synchrotech-carbon-synchros-R31-CD-JK-p/csp2-r31.htm

15 Years of NISformance: Against the Odds. 🏎️💨

If you told someone 15 years ago that we were starting a business dedicated to the Maxima and Altima, they might have called us crazy. But here we are—15 years later—and we haven't looked back.

As these cars transition from daily drivers to modern classics, our mission has only gotten clearer: keep them on the road, keep them fun, and keep them relevant.

A massive shoutout to the community. You’ve repped the brand, installed the parts, and pushed this platform further than anyone thought possible. We aren’t slowing down; we’re just getting into our prime.

Show us what you’re working on! Drop a photo of your build in the comments! 👇