Well after looking at photos of the monsterflow intake for the NA and NB and the article on revlimiter.net and then looking at the stock intake on my car it seems that it shoudlnt be very difficult at all. The NB stock intake just has the single fitting in the middle for the valve cover breather hose and the NA has two; one for the valve cover closer to the throttle body and a second fitting for a line for the idle air controller so with a longer line for the valve cover or simply putting a valve cover breather and plugging the one for the idle air controller. Then the only issue i can forsee is the length and angle which im sure could be fixed quit easily. (i did my own thorough researh..my forum father Trickyrix would be proud...are you?)
If anyone can offer further insight and or assistance i would be very appreciative!