Could I import a vehicle into Japan that exceeded that 280 bhp or does it just apply to domestic models? -

I know that Japanese auto manufacturers adhere to a 280bhp horsepower limitation. Does that apply to foreign vehicles as well? Could I import a vehicle into Japan that exceeded that 280 bhp or does it just apply to domestic models?

The regulation (280 horsepower limitation) was abolished in 2004. However, you ll need to modify some parts of the vehicles when importing, particularly around the exhaust system wise.