hey my friend has a srt-4 and he gave me the greddy pro B spec 2 and i was woundering if it will work with the evo 8 here's some pic's

 

It'll work. A boost controller is universal. Not sure how to install it, but i had one on my SR'd 240sx and i liked it. I didnt even have to buy a boost gauge with it. Its a little hard to learn how to use though. Just read the manual thourghly and you should be fine.