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Product Details
| Part Number: | SO-K20-1C |
| Brand: | SynchroTech |
| Transmission: | Manual |
Synchrotech SO-K20-1C – 1st/2nd Gear Carbon Synchro & Sleeve Set for K-Series A premium-grade transmission upgrade that combines Pro Series carbon synchros, hardened slider sleeve, and springs—all meticulously engineered for 1st and 2nd gear applications in Honda/Acura K-Series manual transmissions.
Fitment:
- 2002–2006 Acura RSX Base & Type-S
- 2001–2006 JDM ITR/CTR
- 2006–2011 Civic Si (DC5, EP3, etc.)
- Additional K20/K24 manual transmission models
- Suitable for both 5-speed and 6-speed variants
Features:
- Premium Carbon Synchronizers: Carbon-lined syncros offer enhanced friction, faster engagement, and superior durability compared to traditional brass designs—ideal for spirited driving or performance-oriented builds.
- Durable Hardened Sleeve: Designed for the rigors of frequent gear shifting, the hardened steel sleeve ensures wear resistance and the structural integrity of the synchronization mechanism.
- Value-Priced Performance: The kit is a smart investment for restoring or enhancing shift feel in critical lower gears.
Includes:
- Pro Series carbon syncros for 1st and 2nd gears
- Synchro springs for both gears
- Hardened steel sleeve for 1st/2nd gear assembly
- This all-in-one set streamlines the synchronization upgrade process.
The Synchrotech SO-K20-1C Carbon Synchro & Sleeve Set is the ideal solution for those seeking to enhance or restore transmission performance in Honda/Acura K-Series 5- and 6-speed gearboxes. Featuring high-friction carbon lining, a rugged hardened sleeve, and all essential components for 1st and 2nd gear, this set delivers smooth, confident shifting and long-term reliability.
Due to the manufacturer's price control policy, this item may be excluded from promotions and discounts
WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects. www.P65Warnings.ca.gov.
Vehicle Fitment
Acura RSX
2002 Acura RSX Base
Manual
2003 Acura RSX Base Manual
2004 Acura RSX Base Manual
2005 Acura RSX Base Manual
2006 Acura RSX Base Manual
2003 Acura RSX Base Manual
2004 Acura RSX Base Manual
2005 Acura RSX Base Manual
2006 Acura RSX Base Manual
2002 Acura RSX Type-S
Manual
2003 Acura RSX Type-S Manual
2004 Acura RSX Type-S Manual
2005 Acura RSX Type-S Manual
2006 Acura RSX Type-S Manual
2003 Acura RSX Type-S Manual
2004 Acura RSX Type-S Manual
2005 Acura RSX Type-S Manual
2006 Acura RSX Type-S Manual
Acura TSX
2004 Acura TSX Base
Manual
2005 Acura TSX Base Manual
2006 Acura TSX Base Manual
2007 Acura TSX Base Manual
2008 Acura TSX Base Manual
2005 Acura TSX Base Manual
2006 Acura TSX Base Manual
2007 Acura TSX Base Manual
2008 Acura TSX Base Manual
Honda Civic
2008 Honda Civic MUGEN Si
Manual
2002 Honda Civic Si
Manual
2003 Honda Civic Si Manual
2004 Honda Civic Si Manual
2005 Honda Civic Si Manual
2006 Honda Civic Si Manual
2007 Honda Civic Si Manual
2008 Honda Civic Si Manual
2009 Honda Civic Si Manual
2010 Honda Civic Si Manual
2011 Honda Civic Si Manual
2003 Honda Civic Si Manual
2004 Honda Civic Si Manual
2005 Honda Civic Si Manual
2006 Honda Civic Si Manual
2007 Honda Civic Si Manual
2008 Honda Civic Si Manual
2009 Honda Civic Si Manual
2010 Honda Civic Si Manual
2011 Honda Civic Si Manual
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