I have an 08 mx5 what intake can I get and whats the oldest year I can get for a proper fit

 

Please use punctuation and complete sentences. I had to read your post three times to fully grasp your questions.

1. Great.
2. I don't know and it won't matter because it won't make more power than stock. Google "Helmholtz resonator."
3. '06 to '10 were similar, if I recall correctly.