Legit wiring kit! I wish it included more speaker wire of varying gauges or just more wire in general… but it’s really good for the money. Got a line output converter set up to a 750W amp in my 08 Toyota Avalon. The power wire (Red) is just a smidge off of 4 gauge I believe (I could be wrong), but it’s certainly thick and ready to handle serious power. The black wire is the perfect length for optimal power output, although I wish it was longer so I could at least have some room to play with.Got this over the Boss audio kit, which I saw in many reviews that the wires were an even smaller gauge than advertised… So glad I did because these are advertised as thicker wires for a very similar price, and they’re no gimmick!