997 Ratioset 3+4 18-31 i=1.722
Description
This Porsche 997 CUP 3rd and 4th gear set has a ratio of 1.722. This set has the standard gear width and is replaceable with Porsche reference number 997.302.963.8E
Input gear: 18
Output gear: 31
Ratio: 1.722
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