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Learn MoreThis complete 170cc Big Bore kit with 4V Cylinder Head kit is the perfect add-on for all horsepower enthusiasts looking for performance!
This is an aftermarket part built for racing purposes ONLY. Koso is not responsible for any damages caused to the parts, vehicle, or to yourself and others. Engine parts are not under warranty nor is collateral damage or cost of labor, in cases of malfunction.
Product Variant | Manufacturer Part # |
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170cc Koso Big Bore With 4 Valve Cylinder Head Kit | MB623003 |