I've been a little disappointed with my quest for a nice exhaust for less than a grand (love the hks silent hipower) and called Invidia today.. All of the wrx/sti exhausts (many more to choose from than lgt) are much cheaper. My guess is that they aren't as mass produced as the wrx/sti exhausts. Either way, I called to talk to someone who knew exhausts well enough to tell me which model/year wrx/sti exhaust could have the hangers (maybe length) modified the least - to fit the lgt.
I specifically mentioned the N1 Dual exhaust... He seemed interested in looking into making the n1 dual for the lgt. (wether that goes anywhere or not isn't really important to me) BUT, he said he would email someone in japan - where they do all their r&d - to see all the specs for different models and years of exhausts to see if theres any way to make something work.
I would looooove that dual N1 on my LGT. Can't wait to hear back from him. I'll keep posting info on this.... if there is any interest.