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A Japanese word slang for “tuning” or “modifying”. The original meaning of Kaizo in Japanese is “reconstruct” or “modify”. And the word can be used in a way referring to remodeling something and or changing a setup. However This term is typically used by 走り屋 (Street racers) or in general Car people. It refers to Tuning a Vehicle or modifying a car with aftermarket performance Tuning parts.
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