im boosting my 90 si, and im not to sure about a few things. once the turbo is installed and all that jazz, from what i understand, i cant drive my car until it gets tuned. now what does tuning involve?

 

You can drive it but dont race, and try not to drive a lot. Tunning involves adjusting a couple of things, but mostly with the way the cars computer works. Changing the fuel and such

 

oh okay. and where can i get this done?

 

Turbos add lots of air and your stock map will not add sufficient fuel for all the added air. You will need to get your fuel and timing maps tuned properly for your specific modifications. You can go to a tuner and have them do it or find somebody locally who can do it with a laptop or you can do lots and lots of research and do it yourself. Its up to you.