My shift knob's P/N is NT-45004 so I don't know whether the NT-45003 and 40001 would fit. All I know is that mine fits fine, though not perfect. You probably should ask the place you're gonna buy it from. Anyways, here are a few pics:
Sweet knob, but can't stand how the threads show like that. Also stick now looks taller that even the stock knob. For the price I would go for something that fit perfectly like the STi ti knob, in addition is sits lower than the stock one.
Neways just incase neone wanted to go a cheaper route the razo resin knob for about 20 bucks fits perfectly, is really light, and sits a bit lower than stock. Just remember to leave the chrome plastic bit out and the reverse lockout fits nicely in the knob.