Welcome Kymco Owners!
Will this hikari h7 led fit on my downtown350i?
On my 300 the spot of lite is in the wrong place for the shape of the reflector, and you would have to leave the rubber cap off./,you have to find a LED with the LED in the same spot as the incandecant lite,filiment
Hard to say, there isn't much room between the headlight socket and the rubber cap for that large heatsink.