Product Description:
Synchrotech Pro Series Carbon Synchro Set
Fits 2006–2011 Honda Civic Si K20Z3 6-Speed (Gears 1-6)
Upgrade your 6-speed transmission with the best in the industry — the Synchrotech Pro Series Carbon Synchro Set for the 2006–2011 Honda Civic Si equipped with the K20Z3 engine. This complete set includes carbon-lined synchros for all six forward gears, delivering superior shifting performance, extended durability, and smooth engagement at both low and high RPM.
🔧 Product Features:
✅ Fits: 2006–2011 Honda Civic Si (K20Z3 6-speed manual)
✅ Includes synchros for gears 1 through 6
✅ Carbon-moly hybrid lining for maximum friction & heat resistance
✅ Designed for high-performance street and race applications
✅ Improved high-RPM shift capability and smoother engagement
✅ Reduces wear and prolongs synchro life over OEM brass synchros
Why Choose Synchrotech Pro Series?
Synchrotech's carbon-lined synchros are the gold standard for high-performance Honda gearboxes. The unique carbon fiber lining provides stronger bite and quicker engagement, making them ideal for spirited driving, track days, and high-power builds.
Installation Note:
Professional installation is highly recommended. Compatible with the OEM 6-speed gearbox found in 06-11 Civic Si with K20Z3 engine.
