Upgraded OZ Series 4.08 Final Drive Ratio for your EVO 4 -9 5-Speed

• Manufactured in partnership with OZ Performance Drivetrain of Australia
• Made from imported Japanese SAE 8620 or 4320 Steel
• Forged, Doubled Tempered with additional Cryogenic Tempering for unsurpassed toughness
• 3-Stage Nano-Peen technology on gear teeth increases surface hardness
• All bearing journals are subjected to an advanced MoS2 surface coating to significantly decrease friction
• Advanced gear geometry designed using industry-leading software puts more power to the ground

Want to see how these compare to your stock final drive or to our 4.11 ratios? Check out our Ratio Chart listed here!