Actually, I put one of those N*power headers on my D16, and it made a HUGE difference, the car was more responsive right through the rev range, revved out much faster too.
I have the same setup in my eg5 (d15 box with d16y1), doesn't make a huge difference other than that its a little better on fuel because I now sit on 2700rpm at 100 in 5th, rather than 3000rpm with...
I just replaced mine - 190,000km before I started hearing the input shaft bearing become noisy. I drove 10,000km's before I replaced it. Spigot bearing was also on the way out but not as bad
I believe they are very similar, they just have different flow characteristics. should fit though - check on d-series.org first, if they dont know, no one will