1. don't take my word, but aren't new intake manifolds for FI? won't do much for NA cars

2. I like the JDM one. ask asiandood, i think he had one for sale before I dunno if its sold or not... maybe check weaksauce.org?

3. I have an auto. its slow, u don't need to race but I personally would die for a 5th gen 5spd. you might get flammed a lil for it being auto... whatever floats your boat