Hi i myself would not extend the wire to many chances for failure.It will unscrew from the coil. Husqvarna and jonsered used that coil on probable 20 saws.Husqvarna 340,345,350,351,353,357,359,365,372,385,390 and possibly others.Jonsered used it on a bunch of saws as well. So you can unscrew it and replace it or buy a good used coil.I wouldn't recommend aftermarket, yes they are cheap but you get what you pay for.HL supply sells coil wire and probibly others as well.Fix it right once or not halfass it a bunch and keep throwing time money and effort at it your choice.