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K20A 1-6 Carbon Synchro Set (Single-Cone 5th/6th)

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Carbon-Composite Synchros
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K20A 1-6 Carbon Synchro Set (Single-Cone 5th/6th)

Improve shifting response with the MFactory R&D (Synchrotech®) Carbon-Composite Synchros.

Utilizing a carbon-carbon lining technology initially developed for the Aerospace Industry which acts as braking material during gear engagement, this allows for quicker and more precise shifting and prolongs the life of your gear set. Unlike our competition, we DO NOT use a spray coating (which wears out quickly) nor a carbon fiber weave (the same stuff used on your Carbon Hood which was not designed for friction!)

After several years of Research & Development on our championship winning race cars, we are proud to offer THE most technologically advanced Synchros on the market.


  • Synchros are made from high strength Japanese brass
  • Synchros are Carbon-Carbon Lined for increased performance and durability
  • 100% larger surface contact area for increase performance
  • More aggressive lock angle for effortless high rpm shifting
Due to the nature of For Race Use Only products, MFactory Competition Products will provide a limited warranty for all Differential Rebuild Parts to be free of defects in materials and workmanship upon receipt of product and initial installation only. Parts returned must be determined by MFactory Competition Products to be defective before any warranty credit or replacement is issued. MFactory Competition Products's obligation under warranty shall be limited to repairing or replacing, at its option, any part proven defective. The customer must prepay transportation charges. Final determination of the suitability of the products for the use contemplated by the buyer is the sole responsibility of the buyer. MFactory Competition Products shall not be liable for any special, direct, indirect, incidental, or consequential damages, that might be claimed as a result of the failure of any part, including claims for delay, loss of profits, or labor. MFactory Competition Products shall not be liable for any damage or injury to persons or property resulting from improper installation or misuse of any part subject to this warranty. There are no other warranties expressed or implied extending beyond those set forth above.