Product Fitment:
2008-2021 Subaru STI
Whether you're rebuilding your Subaru 6-speed transmission or upgrading for smoother gear engagement, the IAG 6-Speed Synchro Package is the ideal solution. This kit includes upgraded synchronizers and baulk rings for enhanced shifting precision and long-term durability.
Key Features:
Complete Synchro Upgrade Kit:
Includes synchros for all forward gears—1st through 6th—for a comprehensive rebuild or performance refresh.
Enhanced Gear Engagement:
1st, 2nd, and 3rd gear brass synchronizers provide consistent engagement and smooth shifting
4th, 5th, and 6th gear carbon-faced brass baulk rings reduce wear and improve high-RPM shifting
OEM-Style Reliability with Performance Benefits:
Carbon-faced baulk rings are a proven OEM upgrade known for increased longevity and smoother gear transitions.
Ideal for Rebuilds and Gear Upgrades:
Popular among performance enthusiasts and professional builders upgrading Subaru GR and VA 6-speed transmissions.
Includes:
1st, 2nd, 3rd Gear Brass Synchronizer Set
4th, 5th, 6th Gear Carbon-Faced Brass Baulk Rings
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