After years of development, rumors, and outright anticipation, we’re pleased to announce the availability of the OS Giken Close Ratio Gearset for the 350Z/G35. This kit consists of Countershaft, 1st main gear, 2nd main gear, 3rd main gear, 3rd counter gear, 4th main gear, 4th counter gear, 5th main gear with input shaft and 6th main gear.
gear ratio comparison:
OEM—1st 3.794, 2nd 2.324, 3rd 1.624, 4th 1.271, 5th 1, 6th 0.794
OS—1st 2.783, 2nd 1.961, 3rd 1.507, 4th 1.217, 5th 1, 6th 0.812
Construction is similar to their other gearsets, using steel alloy material, chemical heat treating, etc. It’s built for high performance race use, and is suitable for street use as well, and will handle just about any sort of hp and torque you can throw at it.
Check out the video in this post, and contact us at (631)863-3820 or z1sales@z1auto.com for full details!
Kwame
Z1 Performance
Jonathan
Corner Balance 
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