If you can get a lifetime, go for it. Or else, if you can take it out, you can probably take it to Honda and have them put a new boot on it, repack it, and put it back in yourself for about the price of an aftermarket one. That's if you don't want to do it yourself.

Just because the boot is torn, doesn't mean it's junk. Unless it's been torn for a long time, then it may be junk.