FinBro 183 Big Bore Kit



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The ONLY complete BBK 183cc 2v in the market. 

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FinBro 183cc 2v BBK

Potential of 19HP @ 10,500RPM with our matching exhaust and ECM (Dyno Proven)

•63.5mm 2v Forged piston with optional 15mm pin for upgraded crankshaft.
•FinBro 6.0mm camshaft
•New gaskets: exhaust, cylinder, head, right side cover
•FinBro clutch spring set
•New spark plug
•FinBro port matched TB, intake pipe, insulator   ***KOSO TB kit & port matching optional***

FinBro ECM included along with upgraded 5mm fuel line and our 6 hold injector

Plug and play system. No laptops, software update, USB Cables, or map building/searching needed.

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