The Synchrotech Carbon Synchro Rebuild kits 06-11 Honda Civic Si

Unlike the OEM Brass or carbon/moly or carbon fiber weave synchros that have a spray coating or a woven carbon fiber fabric, Synchrotech Pro Series Carbon Synchros have a full carbon composite lining. Utilizing carbon-carbon technology. This was initially developed for the Aerospace industry, Synchrotechs carbon composite material acts as a braking material during gear engagement. This allows for quicker and more precise shifting and prolongs the life of the synchro sleeve and gear engagement teeth. Synchrotech is proud to offer the most technologically advanced synchros on the market. These kits are an affordable way to replace worn or broken synchros in your 06-11 Honda Civic Si featuring the K20Z3 Motors transmission. Not only is it affordable its a performance upgrade.

Not only do we have simple rebuild kits in which you can choose just the synchros you need, we also have a full line of complimentary hardened steel sleeves, hubs and carbonized synchro springs to go along with our carbon synchro sets. Essentially a full rebuild kit for your 8th generation Civic Si.

"These rebuild kits come in many variations to fit your needs. All the way from just a couple of synchros, to a complete synchro set to a full transmission rebuild. Affordability and performance combined to make your car perform the best." -- HARDmotion Team

Synchrotech Kits: What is included in each kit below

- Synchrotech® Hardened 1-2 K20 Sleeve: (SO-K20-1)

- Synchrotech® Hardened 3-4 K20 Sleeve: (SO-K20-3)

- Synchrotech® Hardened 5-6 K20 Sleeve: (SO-K20-5)

- 1-6th Synchrotech Synchro Set 1-6: (SYN117-3)
Includes: Synchrotech® 1-6 Pro Series Carbon Synchro Set

- 1-6th Synchrotech Synchro Set 1-6 w/ Rebuild kit: (BSK-SYN117-3)
Includes: Synchrotech® 1-6 Pro Series Carbon Synchro Set , 1-6 springs,
4 shaft bearings, bearing clip, 2 axle seals, input seal, and shift rod seal.

- 1-6th Syncrhotech Synchro Set 1-6 w/ ULTIMATE Rebuild Kit: (MK-SYN117-3)
Includes: Synchrotech® 1-6 Pro Series Carbon Synchro Set , 1-6 springs,
1/2/3/4/5/6 sleeves, 4 shaft bearings, bearing clip, 2 axle seals, input seal, and shift rod seal.

Fitment: 06-11 Honda Civic Si
2006 2007 2008 2009 2010 2011
k20z3 Motor

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